diff --git a/projects/mtg/bin/Res/sets/primitives/mtg.txt b/projects/mtg/bin/Res/sets/primitives/mtg.txt
index 15bd61f4e..635d12de9 100644
--- a/projects/mtg/bin/Res/sets/primitives/mtg.txt
+++ b/projects/mtg/bin/Res/sets/primitives/mtg.txt
@@ -30657,7 +30657,7 @@ toughness=4
 [/card]
 [card]
 name=Ethereal Haze
-auto=preventalldamage to(creature) ueot
+auto=preventalldamage from(creature) ueot
 text=Prevent all damage that would be dealt by creatures this turn.
 mana={W}
 type=Instant
@@ -69645,6 +69645,66 @@ power=1
 toughness=1
 [/card]
 [card]
+name=Patron of the Akki
+other={kgoblin} name(Goblin Offering)
+abilities=offering
+auto=@combat(attacking) source(this):all(creature[attacking]) 2/0 ueot
+text=Goblin offering (You may cast this card any time you could cast an instant by sacrificing a Goblin and paying the difference in mana costs between this and the sacrificed Goblin. Mana cost includes color.) -- Whenever Patron of the Akki attacks, creatures you control get +2/+0 until end of turn.
+mana={4}{R}{R}
+type=Legendary Creature
+subtype=Spirit
+power=5
+toughness=5
+[/card]
+[card]
+name=Patron of the Kitsune
+other={kfox} name(Fox Offering)
+abilities=offering
+auto=@each blockers:may life:type:creature[attacking]:battlefield controller
+text=Fox offering (You may cast this card any time you could cast an instant by sacrificing a Fox and paying the difference in mana costs between this and the sacrificed Fox. Mana cost includes color.) -- Whenever a creature attacks, you may gain 1 life.
+mana={4}{W}{W}
+type=Legendary Creature
+subtype=Spirit
+power=5
+toughness=6
+[/card]
+[card]
+name=Patron of the Moon
+other={kmoonfolk} name(Moonfolk Offering)
+abilities=flying,offering
+auto={1}:name(put 2 lands in play) moveto(mybattlefield) and!(tap)! notatarget(<upto:2>land|myhand)
+text=Moonfolk offering (You may cast this card any time you could cast an instant by sacrificing a Moonfolk and paying the difference in mana costs between this and the sacrificed Moonfolk. Mana cost includes color.) -- Flying -- {1}: Put up to two land cards from your hand onto the battlefield tapped.
+mana={5}{U}{U}
+type=Legendary Creature
+subtype=Spirit
+power=5
+toughness=4
+[/card]
+[card]
+name=Patron of the Nezumi
+other={krat} name(Rat Offering)
+abilities=offering
+auto=@movedto(*|opponentgraveyard) from(battlefield):life:-1 opponent
+text=Rat offering (You may cast this card any time you could cast an instant by sacrificing a Rat and paying the difference in mana costs between this and the sacrificed Rat. Mana cost includes color.) -- Whenever a permanent is put into an opponent's graveyard, that player loses 1 life.
+mana={5}{B}{B}
+type=Legendary Creature
+subtype=Spirit
+power=6
+toughness=6
+[/card]
+[card]
+name=Patron of the Orochi
+other={ksnake} name(Snake Offering)
+abilities=offering
+auto={T}:name(untap all green creatures and forests) untap all(forest) && untap all(creature[green]) limit:1
+text=Snake offering (You may cast this card any time you could cast an instant by sacrificing a Snake and paying the difference in mana costs between this and the sacrificed Snake. Mana cost includes color.) -- {T}: Untap all Forests and all green creatures. Activate this ability only once each turn.
+mana={6}{G}{G}
+type=Legendary Creature
+subtype=Spirit
+power=7
+toughness=7
+[/card]
+[card]
 name=Patron of the Wild
 facedown={3}
 autofacedown={2}{G}:morph
diff --git a/projects/mtg/bin/Res/sets/primitives/unsupported.txt b/projects/mtg/bin/Res/sets/primitives/unsupported.txt
index 345ecc823..f1608d66b 100644
--- a/projects/mtg/bin/Res/sets/primitives/unsupported.txt
+++ b/projects/mtg/bin/Res/sets/primitives/unsupported.txt
@@ -11637,51 +11637,6 @@ mana={3}{B}{B}
 type=Sorcery
 [/card]
 [card]
-name=Patron of the Akki
-text=Goblin offering (You may cast this card any time you could cast an instant by sacrificing a Goblin and paying the difference in mana costs between this and the sacrificed Goblin. Mana cost includes color.) -- Whenever Patron of the Akki attacks, creatures you control get +2/+0 until end of turn.
-mana={4}{R}{R}
-type=Legendary Creature
-subtype=Spirit
-power=5
-toughness=5
-[/card]
-[card]
-name=Patron of the Kitsune
-text=Fox offering (You may cast this card any time you could cast an instant by sacrificing a Fox and paying the difference in mana costs between this and the sacrificed Fox. Mana cost includes color.) -- Whenever a creature attacks, you may gain 1 life.
-mana={4}{W}{W}
-type=Legendary Creature
-subtype=Spirit
-power=5
-toughness=6
-[/card]
-[card]
-name=Patron of the Moon
-text=Moonfolk offering (You may cast this card any time you could cast an instant by sacrificing a Moonfolk and paying the difference in mana costs between this and the sacrificed Moonfolk. Mana cost includes color.) -- Flying -- {1}: Put up to two land cards from your hand onto the battlefield tapped.
-mana={5}{U}{U}
-type=Legendary Creature
-subtype=Spirit
-power=5
-toughness=4
-[/card]
-[card]
-name=Patron of the Nezumi
-text=Rat offering (You may cast this card any time you could cast an instant by sacrificing a Rat and paying the difference in mana costs between this and the sacrificed Rat. Mana cost includes color.) -- Whenever a permanent is put into an opponent's graveyard, that player loses 1 life.
-mana={5}{B}{B}
-type=Legendary Creature
-subtype=Spirit
-power=6
-toughness=6
-[/card]
-[card]
-name=Patron of the Orochi
-text=Snake offering (You may cast this card any time you could cast an instant by sacrificing a Snake and paying the difference in mana costs between this and the sacrificed Snake. Mana cost includes color.) -- {T}: Untap all Forests and all green creatures. Activate this ability only once each turn.
-mana={6}{G}{G}
-type=Legendary Creature
-subtype=Spirit
-power=7
-toughness=7
-[/card]
-[card]
 name=Pay No Heed
 text=Prevent all damage a source of your choice would deal this turn.
 mana={W}
diff --git a/projects/mtg/bin/Res/test/PT_M15_errata.txt b/projects/mtg/bin/Res/test/PT_M15_errata.txt
new file mode 100644
index 000000000..6aa8b7770
--- /dev/null
+++ b/projects/mtg/bin/Res/test/PT_M15_errata.txt
@@ -0,0 +1,47 @@
+#Testing Turn to Frog to Serra Angel with Crusade in play.
+#M15 uses base power template, so setting the power/toughness.
+#only affects the base or original power/toughness.
+#Turn to Frog makes Serra Angel a 1/1 blue frog... latest pull
+#request from GIT fixes the issue of Serra Angel dying
+#from crusade because of invalid reduction of P/T :)
+#
+#First attack is 1/1 blue Serra Angel unaffected by Crusade
+#Second attack is 5/5 Serra Angel affected by Crusade :)
+[INIT]
+FIRSTMAIN
+[PLAYER1]
+inplay:Serra Angel, Crusade
+hand:Turn to Frog
+manapool:{1}{U}
+[PLAYER2]
+[DO]
+Turn to Frog
+Serra Angel
+next
+next
+Serra Angel
+next
+eot
+eot
+#untap
+next
+#upkeep
+next
+#draw
+next
+#main1
+next
+#combat begin
+next
+#attackers
+Serra Angel
+eot
+[ASSERT]
+UNTAP
+[PLAYER1]
+inplay:Serra Angel, Crusade
+graveyard:Turn to Frog
+manapool:{0}
+[PLAYER2]
+life:14
+[END] 
diff --git a/projects/mtg/bin/Res/test/PT_M15_errata2.txt b/projects/mtg/bin/Res/test/PT_M15_errata2.txt
new file mode 100644
index 000000000..b71083d80
--- /dev/null
+++ b/projects/mtg/bin/Res/test/PT_M15_errata2.txt
@@ -0,0 +1,41 @@
+#Testing Turn to Frog to Serra Angel with Glorious Anthem in play.
+#First attack is 2/2 blue Serra Angel affected by Glorious Anthem
+#Second attack is 5/5 Serra Angel affected by Glorious Anthem :)
+[INIT]
+FIRSTMAIN
+[PLAYER1]
+inplay:Serra Angel, Glorious Anthem
+hand:Turn to Frog
+manapool:{1}{U}
+[PLAYER2]
+[DO]
+Turn to Frog
+Serra Angel
+next
+next
+Serra Angel
+next
+eot
+eot
+#untap
+next
+#upkeep
+next
+#draw
+next
+#main1
+next
+#combat begin
+next
+#attackers
+Serra Angel
+eot
+[ASSERT]
+UNTAP
+[PLAYER1]
+inplay:Serra Angel, Glorious Anthem
+graveyard:Turn to Frog
+manapool:{0}
+[PLAYER2]
+life:13
+[END] 
diff --git a/projects/mtg/bin/Res/test/_tests.txt b/projects/mtg/bin/Res/test/_tests.txt
index 68fc41c15..eede5159b 100644
--- a/projects/mtg/bin/Res/test/_tests.txt
+++ b/projects/mtg/bin/Res/test/_tests.txt
@@ -534,6 +534,8 @@ prowess_of_the_fair.txt
 prowess_of_the_fair2.txt
 prowess_of_the_fair3.txt
 PTInstant.txt
+PT_M15_errata.txt
+PT_M15_errata2.txt
 pygmy_troll.txt
 pyknite_i426.txt
 pyroclasm.txt
diff --git a/projects/mtg/include/AllAbilities.h b/projects/mtg/include/AllAbilities.h
index e8d099441..698eb8a58 100644
--- a/projects/mtg/include/AllAbilities.h
+++ b/projects/mtg/include/AllAbilities.h
@@ -4307,10 +4307,13 @@ public:
     
     string newpower;
     bool newpowerfound;
+
     int oldpower;
+    int oldpowerbonus;
     string newtoughness;
     bool newtoughnessfound;
     int oldtoughness;
+    int oldtoughnessbonus;
     map<Damageable *, vector<MTGAbility *> > newAbilities;
     vector<string> newAbilitiesList;
     bool newAbilityFound;
diff --git a/projects/mtg/include/ExtraCost.h b/projects/mtg/include/ExtraCost.h
index bf935ec8b..09cf9323a 100644
--- a/projects/mtg/include/ExtraCost.h
+++ b/projects/mtg/include/ExtraCost.h
@@ -254,6 +254,17 @@ public:
   virtual Ninja * clone() const;
 };
 
+//offering cost
+class Offering : public ExtraCost
+{
+public:
+  Offering(TargetChooser *_tc = NULL);
+  virtual int canPay();
+  virtual int isPaymentSet();
+  virtual int doPay();
+  virtual Offering * clone() const;
+};
+
 class CounterCost : public ExtraCost
 {
 public:
diff --git a/projects/mtg/include/MTGCardInstance.h b/projects/mtg/include/MTGCardInstance.h
index 82053bcf1..c7132e310 100644
--- a/projects/mtg/include/MTGCardInstance.h
+++ b/projects/mtg/include/MTGCardInstance.h
@@ -72,7 +72,9 @@ public:
     int regenerateTokens;
     int isToken;
     int origpower;
+    int basepower;//to keep origpower intact
     int origtoughness;
+    int basetoughness;//to keep origtoughness intact
     int isMultiColored;
     int isLeveler;
     bool enchanted;
diff --git a/projects/mtg/include/MTGDefinitions.h b/projects/mtg/include/MTGDefinitions.h
index 79311fc1b..5f4ea6dde 100644
--- a/projects/mtg/include/MTGDefinitions.h
+++ b/projects/mtg/include/MTGDefinitions.h
@@ -224,7 +224,8 @@ class Constants
       OPPGRAVEEXILER = 106,
       LIBRARYDEATH = 107,
       SHUFFLELIBRARYDEATH = 108,
-      NB_BASIC_ABILITIES = 109,
+      OFFERING = 109,
+      NB_BASIC_ABILITIES = 110,
 
 
     RARITY_S = 'S',   //Special Rarity
diff --git a/projects/mtg/src/AllAbilities.cpp b/projects/mtg/src/AllAbilities.cpp
index e868654bb..cdff3bc9b 100644
--- a/projects/mtg/src/AllAbilities.cpp
+++ b/projects/mtg/src/AllAbilities.cpp
@@ -4181,21 +4181,24 @@ for (it = types.begin(); it != types.end(); it++)
         }
     }
     if(newpowerfound )
-    {
+    {//setting p/t only overrides base p/t as of M15 changes
         WParsedInt * val = NEW WParsedInt(newpower,NULL, source);
         oldpower = _target->power;
-        _target->power += val->getValue();
-        _target->power -= oldpower;
-        _target->power += reapplyCountersBonus(_target,false,true);
+        oldpowerbonus = oldpower - _target->basepower;
+        _target->setPower(oldpowerbonus + val->getValue());
+        _target->basepower = val->getValue();
+        //?effects that change pt outside this?
+        //_target->power += reapplyCountersBonus(_target,false,true);
         delete val;
     }
     if(newtoughnessfound )
-    {
+    {//setting p/t only overrides base p/t as of M15 changes
         WParsedInt * val = NEW WParsedInt(newtoughness,NULL, source);
         oldtoughness = _target->toughness;
-        _target->addToToughness(val->getValue());
-        _target->addToToughness(-oldtoughness);
-        _target->addToToughness(reapplyCountersBonus(_target,true,false));
+        oldtoughnessbonus = oldtoughness - _target->basetoughness;
+        _target->setToughness(oldtoughnessbonus + val->getValue());
+		_target->basetoughness = val->getValue();
+        //_target->addToToughness(reapplyCountersBonus(_target,true,false));
         _target->life = _target->toughness;
         delete val;
     }
@@ -4282,12 +4285,17 @@ int ATransformer::destroy()
         }
 
         if(newpowerfound )
-        {
-            _target->power = oldpower;
+        {//override since we changed tha base, the bonus must have changed
+            oldpowerbonus = (_target->power - _target->basepower);//math hurts my head...it's all over the place :P
+            _target->setPower(_target->origpower + oldpowerbonus);
+            _target->basepower = _target->origpower;//revert
         }
         if(newtoughnessfound )
-        {
-            _target->setToughness(oldtoughness);
+        {//override since we changed tha base, the bonus must have changed
+            oldtoughnessbonus = (_target->toughness - _target->basetoughness);
+            _target->setToughness(_target->origtoughness + oldtoughnessbonus);
+            _target->basetoughness = _target->origtoughness;//revert
+            _target->life = _target->toughness;//update
         }
         if(newAbilityFound)
         {
diff --git a/projects/mtg/src/ExtraCost.cpp b/projects/mtg/src/ExtraCost.cpp
index 3bd2ce7a2..8158f6e62 100644
--- a/projects/mtg/src/ExtraCost.cpp
+++ b/projects/mtg/src/ExtraCost.cpp
@@ -762,6 +762,65 @@ int Ninja::doPay()
 }
 
 //endbouncetargetcostforninja
+
+//Sacrifice target as cost for Offering
+Offering * Offering::clone() const
+{
+    Offering * ec = NEW Offering(*this);
+    if (tc)
+        ec->tc = tc->clone();
+    return ec;
+}
+
+Offering::Offering(TargetChooser *_tc) :
+ExtraCost("Select creature to offer", _tc)
+{
+}
+
+int Offering::canPay()
+{
+    if (target && (!source->controller()->getManaPool()->canAfford(source->getManaCost()->Diff(target->getManaCost()))))
+    {
+        tc->removeTarget(target);
+        target = NULL;
+        return 0;
+    }
+    if (target && (source->controller()->getManaPool()->canAfford(source->getManaCost()->Diff(target->getManaCost()))))
+        return 1;
+    return 0;
+}
+
+int Offering::isPaymentSet()
+{
+    if (target && (!source->controller()->getManaPool()->canAfford(source->getManaCost()->Diff(target->getManaCost()))))
+    {
+        tc->removeTarget(target);
+        target = NULL;
+        return 0;
+    }
+    if (target && (source->controller()->getManaPool()->canAfford(source->getManaCost()->Diff(target->getManaCost()))))
+        return 1;
+    return 0;
+}
+
+int Offering::doPay()
+{
+    if (target)
+    {
+        target->controller()->getManaPool()->pay(source->getManaCost()->Diff(target->getManaCost()));
+        MTGCardInstance * beforeCard = target;
+        source->storedCard = target->createSnapShot();
+        target->controller()->game->putInGraveyard(target);
+        WEvent * e = NEW WEventCardSacrifice(beforeCard,target);
+        GameObserver * game = target->owner->getObserver();
+        game->receiveEvent(e);
+        target = NULL;
+        if (tc)
+            tc->initTargets();
+        return 1;
+    }
+    return 0;
+}
 //------------------------------------------------------------
 
 SacrificeCost * SacrificeCost::clone() const
diff --git a/projects/mtg/src/MTGAbility.cpp b/projects/mtg/src/MTGAbility.cpp
index fca67f710..f6b8539c3 100644
--- a/projects/mtg/src/MTGAbility.cpp
+++ b/projects/mtg/src/MTGAbility.cpp
@@ -447,6 +447,12 @@ int AbilityFactory::parseCastRestrictions(MTGCardInstance * card, Player * playe
             if(cPhase < MTG_PHASE_COMBATBEGIN ||cPhase > MTG_PHASE_COMBATEND )
                 return 0;
         }
+        check = restriction[i].find("during my main phases");
+        if(check != string::npos)
+        {
+            if( player != observer->currentPlayer && (cPhase != MTG_PHASE_FIRSTMAIN ||cPhase != MTG_PHASE_SECONDMAIN) )
+                return 0;
+        }
         check = restriction[i].find("during my turn");
         if(check != string::npos)
         {
diff --git a/projects/mtg/src/MTGCardInstance.cpp b/projects/mtg/src/MTGCardInstance.cpp
index b957afa0c..c2daef4a1 100644
--- a/projects/mtg/src/MTGCardInstance.cpp
+++ b/projects/mtg/src/MTGCardInstance.cpp
@@ -36,7 +36,9 @@ MTGCardInstance::MTGCardInstance(MTGCard * card, MTGPlayerCards * arg_belongs_to
     attacker = 0;
     lifeOrig = life;
     origpower = power;
+    basepower = origpower;
     origtoughness = toughness;
+    basetoughness = origtoughness;
     belongs_to = arg_belongs_to;
     owner = NULL;
     if (arg_belongs_to)
diff --git a/projects/mtg/src/MTGDefinitions.cpp b/projects/mtg/src/MTGDefinitions.cpp
index bf2ca0f09..13d0ec579 100644
--- a/projects/mtg/src/MTGDefinitions.cpp
+++ b/projects/mtg/src/MTGDefinitions.cpp
@@ -137,7 +137,8 @@ const char* Constants::MTGBasicAbilities[] = {
     "mygraveexiler",
     "oppgraveexiler",
     "librarydeath",
-    "shufflelibrarydeath"
+    "shufflelibrarydeath",
+    "offering"
 };
 
 map<string,int> Constants::MTGBasicAbilitiesMap;
diff --git a/projects/mtg/src/MTGRules.cpp b/projects/mtg/src/MTGRules.cpp
index d3ef99baf..c85bff344 100644
--- a/projects/mtg/src/MTGRules.cpp
+++ b/projects/mtg/src/MTGRules.cpp
@@ -317,7 +317,7 @@ int MTGPutInPlayRule::isReactingToClick(MTGCardInstance * card, ManaCost *)
             return 1;
         }
     }
-    else if ((card->hasType(Subtypes::TYPE_INSTANT)) || card->has(Constants::FLASH)
+    else if ((card->hasType(Subtypes::TYPE_INSTANT)) || card->has(Constants::FLASH) 
         || (player == card->controller() && !game->isInterrupting
         && (game->getCurrentGamePhase() == MTG_PHASE_FIRSTMAIN
         || game->getCurrentGamePhase() == MTG_PHASE_SECONDMAIN))
@@ -651,7 +651,7 @@ int MTGAlternativeCostRule::isReactingToClick(MTGCardInstance * card, ManaCost *
             )
             return 1;
     }
-    else if ((card->hasType(Subtypes::TYPE_INSTANT)) || card->has(Constants::FLASH) 
+    else if ((card->hasType(Subtypes::TYPE_INSTANT)) || card->has(Constants::FLASH) || card->has(Constants::OFFERING) 
         || (player == card->controller() && !game->isInterrupting
         && (game->getCurrentGamePhase() == MTG_PHASE_FIRSTMAIN
         || game->getCurrentGamePhase() == MTG_PHASE_SECONDMAIN))
diff --git a/projects/mtg/src/ManaCost.cpp b/projects/mtg/src/ManaCost.cpp
index 4c0b0a2e3..31a338161 100644
--- a/projects/mtg/src/ManaCost.cpp
+++ b/projects/mtg/src/ManaCost.cpp
@@ -193,6 +193,33 @@ ManaCost * ManaCost::parseManaCost(string s, ManaCost * _manaCost, MTGCardInstan
                             manaCost->addExtraCost(NEW Ninja(tc));
                             break;
                         }
+                    case 'k': //kill offering
+                        {
+                            TargetChooserFactory tcf(g);
+                            if (value == "kgoblin")
+                            {
+                                tc = tcf.createTargetChooser("creature[goblin]|myBattlefield", c);
+                            }
+                            else if (value == "kfox")
+                            {
+                                tc = tcf.createTargetChooser("creature[fox]|myBattlefield", c);
+                            }
+                            else if (value == "kmoonfolk")
+                            {
+                                tc = tcf.createTargetChooser("creature[moonfolk]|myBattlefield", c);
+                            }
+                            else if (value == "krat")
+                            {
+                                tc = tcf.createTargetChooser("creature[rat]|myBattlefield", c);
+                            }
+                            else if (value == "ksnake")
+                            {
+                                tc = tcf.createTargetChooser("creature[snake]|myBattlefield", c);
+                            }
+                            //TODO iterate subtypes of creatures
+                            manaCost->addExtraCost(NEW Offering(tc));
+                            break;
+                        }
                     case 'p' :
                         {
                             SAFE_DELETE(tc);