added basic card draw replacement,

auto=replacedraw choice damage:2

auto=replacedraw choice draw:2 noreplace

notice noreplace exempts the draw from sending a draw event. draw events and drawn events are seperate events.

added dredge and it's rules.

[card]
name=Dakmor Salvage
auto=tap
auto={t}:add{b}
dredge=dredge(2)
text=Dakmor Salvage enters the battlefield tapped. -- {T}: Add {B} to your mana pool. -- Dredge 2 (If you would draw a card, instead you may put exactly two cards from the top of your library into your graveyard. If you do, return this card from your graveyard to your hand. Otherwise, draw a card.)
type=Land
[/card]

projects/mtg/include/MTGRules.h

@@ -272,6 +272,24 @@ public:
     virtual ostream& toString(ostream& out) const;
     virtual MTGSoulbondRule * clone() const;
 };
+/*dredge*/
+class MTGDredgeRule: public PermanentAbility, public ReplacementEffect
+{
+public:
+    vector<MTGCardInstance*>soulbonders;
+    TargetChooser * tcb;
+    MTGAbility * dredgeAbility;
+    MTGAbility * targetAbility;
+    MTGAbility * targetAbilityAdder;
+    MTGAbility * targetAbility1;
+    MTGAbility * mod;
+    MTGAbility * activateDredge;
+    vector<MTGAbility*>pairing;
+    MTGDredgeRule(GameObserver* observer, int _id);
+    WEvent * replace(WEvent *e);
+    virtual ostream& toString(ostream& out) const;
+    virtual MTGDredgeRule * clone() const;
+};
 /* Persist Rule */
 class MTGPersistRule: public PermanentAbility
 {