added:

Mangara's Equity
Maralen of the Mornsong
Mercenary Informer
Mind Swords
Monkey Cage
Myr Battlesphere
Mystic Snake
Necropolis

projects/mtg/bin/Res/sets/primitives/mtg.txt

@@ -51643,6 +51643,15 @@ power=1
 toughness=1
 [/card]
 [card]
+name=Mangara's Equity
+auto=upcost[{1}{W}] sacrifice
+auto=choice name(choose black) transforms((,newability[@damaged(controller) from(creature[black]|*):damage:thatmuch all(trigger[from])],newability[@damaged(creature[white]|mybattlefield) from(creature[black]|*):damage:thatmuch all(trigger[from])])) forever
+auto=choice name(choose red) transforms((,newability[@damaged(controller) from(creature[red]|*):damage:thatmuch all(trigger[from])],newability[@damaged(creature[white]|mybattlefield) from(creature[red]|*):damage:thatmuch all(trigger[from])])) forever
+text=As Mangara's Equity enters the battlefield, choose black or red. -- At the beginning of your upkeep, sacrifice Mangara's Equity unless you pay {1}{W}. -- Whenever a creature of the chosen color deals damage to you or a white creature you control, Mangara's Equity deals that much damage to that creature.
+mana={1}{W}{W}
+type=Enchantment
+[/card]
+[card]
 name=Maniacal Rage
 target=creature
 auto=2/2
@@ -51744,6 +51753,19 @@ type=Enchantment
 subtype=Aura
 [/card]
 [card]
+name=Maralen of the Mornsong
+auto=replacedraw 0/0
+auto=opponentreplacedraw 0/0
+auto=@each my draw:life:-3 && ability$!choice name(search a card) notatarget(*|mylibrary) moveto(ownerhand) && shuffle!$ controller
+auto=@each opponent draw:life:-3 opponent && ability$!choice name(search a card) notatarget(*|mylibrary) moveto(ownerhand) && shuffle!$ opponent
+text=Players can't draw cards. -- At the beginning of each player's draw step, that player loses 3 life, searches his or her library for a card, puts it into his or her hand, then shuffles his or her library.
+mana={1}{B}{B}
+type=Legendary Creature
+subtype=Elf Wizard
+power=2
+toughness=3
+[/card]
+[card]
 name=Marauding Knight
 abilities=protection from white
 auto=foreach(Plains|opponentBattlefield) 1/1
@@ -52970,6 +52992,17 @@ mana={2}{R}
 type=Instant
 [/card]
 [card]
+name=Mercenary Informer
+auto=cantbetargetof(*[black])
+auto={2}{W}:bottomoflibrary
+text=Mercenary Informer can't be the target of black spells or abilities from black sources. -- {2}{W}: Put target Mercenary on the bottom of its owner's library.
+mana={2}{W}
+type=Creature
+subtype=Human Rebel Mercenary
+power=2
+toughness=1
+[/card]
+[card]
 name=Mercenary Knight
 auto=aslongas(creature|myhand) reject target(creature|myhand) oneshot
 auto=moveTo(graveyard) notatarget(this|myBattlefield)
@@ -53826,6 +53859,15 @@ mana={2}
 type=Artifact
 [/card]
 [card]
+name=Mind Swords
+other={S(creature|myBattlefield)}
+otherrestriction=type(swamp|mybattlefield)~morethan~0
+auto=ability$!moveto(exile) notatarget(<2>*|myhand)!$ controller && ability$!moveto(exile) notatarget(<2>*|myhand)!$ opponent
+text=If you control a Swamp, you may sacrifice a creature rather than pay Mind Swords's mana cost. -- Each player exiles two cards from his or her hand.
+mana={1}{B}
+type=Sorcery
+[/card]
+[card]
 name=Mind Twist
 target=player
 auto=discard:X
@@ -55233,6 +55275,29 @@ power=1
 toughness=1
 [/card]
 [card]
+name=Monkey Cage
+auto=@movedTo(creature[manacost=0]|battlefield) once:sacrifice all(this) && loseabilities all(this)
+auto=@movedTo(creature[manacost=1]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)
+auto=@movedTo(creature[manacost=2]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*2
+auto=@movedTo(creature[manacost=3]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*3
+auto=@movedTo(creature[manacost=4]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*4
+auto=@movedTo(creature[manacost=5]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*5
+auto=@movedTo(creature[manacost=6]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*6
+auto=@movedTo(creature[manacost=7]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*7
+auto=@movedTo(creature[manacost=8]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*8
+auto=@movedTo(creature[manacost=9]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*9
+auto=@movedTo(creature[manacost=10]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*10
+auto=@movedTo(creature[manacost=11]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*11
+auto=@movedTo(creature[manacost=12]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*12
+auto=@movedTo(creature[manacost=13]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*13
+auto=@movedTo(creature[manacost=14]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*14
+auto=@movedTo(creature[manacost=15]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*15
+auto=@movedTo(creature[manacost=16]|battlefield) once:sacrifice all(this) && loseabilities all(this) && token(Ape,Creature Ape,2/2,green)*16
+text=When a creature enters the battlefield, sacrifice Monkey Cage and put X 2/2 green Ape creature tokens onto the battlefield, where X is that creature's converted mana cost.
+mana={5}
+type=Artifact
+[/card]
+[card]
 name=Mons's Goblin Raiders
 mana={R}
 type=Creature
@@ -56451,6 +56516,17 @@ power=1
 toughness=1
 [/card]
 [card]
+name=Myr Battlesphere
+auto=token(Myr,Artifact Creature Myr,1/1)*4
+auto=@combat(attacking) source(this) restriction{type(myr[-tapped]|mybattlefield)~morethan~0}:may notatarget(<anyamount>myr[-tapped]|mybattlefield) tap && all(this) 1/0 ueot && damage:1 opponent
+text=When Myr Battlesphere enters the battlefield, put four 1/1 colorless Myr artifact creature tokens onto the battlefield. Whenever Myr Battlesphere attacks, you may tap X untapped Myr you control. If you do, Myr Battlesphere gets +X/+0 until end of turn and deals X damage to defending player.
+mana={7}
+type=Artifact Creature
+subtype=Myr Construct
+power=4
+toughness=7
+[/card]
+[card]
 name=Myr Enforcer
 abilities=affinityartifacts
 text=Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
@@ -56734,6 +56810,17 @@ mana={3}{U}
 type=Sorcery
 [/card]
 [card]
+name=Mystic Snake
+abilities=flash
+auto=if type(*|stack)~morethan~0 then fizzle target(*|stack)
+text=Flash (You may cast this spell any time you could cast an instant.) -- When Mystic Snake enters the battlefield, counter target spell.
+mana={1}{G}{U}{U}
+type=Creature
+subtype=Snake
+power=2
+toughness=2
+[/card]
+[card]
 name=Mystic Visionary
 auto=aslongas(*|mygraveyard) flying >6
 text=Threshold - Mystic Visionary has flying as long as seven or more cards are in your graveyard.
@@ -57428,6 +57515,17 @@ power=1
 toughness=1
 [/card]
 [card]
+name=Necropolis
+abilities=defender
+auto={E(creature|mygraveyard)}:counter(0/1,storedmanacost)
+text=Defender (This creature can't attack.) -- Exile a creature card from your graveyard: Put X +0/+1 counters on Necropolis, where X is the exiled card's converted mana cost.
+mana={5}
+type=Artifact Creature
+subtype=Wall
+power=0
+toughness=1
+[/card]
+[card]
 name=Necropolis Regent
 auto=lord(creature|mybattlefield) transforms((,newability[@combatdamaged(player) from(this):dynamicability<!thatmuchcountersoneone!>]))
 abilities=flying

projects/mtg/bin/Res/sets/primitives/unsupported.txt

@@ -10228,30 +10228,12 @@ mana={2}{W}
 type=Instant
 [/card]
 [card]
-name=Mangara's Equity
-auto=upcost[{1}{W}] sacrifice
-auto=choice name(choose black) all(this) transforms((,newability[@damaged(controller) from(creature[black]):damage:thatmuch all(trigger)],newability[@damaged(creature[white]|mybattlefield) from(creature[black]):damage:thatmuch all(trigger)])) forever
-auto=choice name(choose red) all(this) transforms((,newability[@damaged(controller) from(creature[red]):damage:thatmuch all(trigger)],newability[@damaged(creature[white]|mybattlefield) from(creature[red]):damage:thatmuch all(trigger)])) forever
-text=As Mangara's Equity enters the battlefield, choose black or red. -- At the beginning of your upkeep, sacrifice Mangara's Equity unless you pay {1}{W}. -- Whenever a creature of the chosen color deals damage to you or a white creature you control, Mangara's Equity deals that much damage to that creature.
-mana={1}{W}{W}
-type=Enchantment
-[/card]
-[card]
 name=Mangara's Tome
 text=When Mangara's Tome enters the battlefield, search your library for five cards, exile them in a face-down pile, and shuffle that pile. Then shuffle your library. -- {2}: The next time you would draw a card this turn, instead put the top card of the exiled pile into its owner's hand.
 mana={5}
 type=Artifact
 [/card]
 [card]
-name=Maralen of the Mornsong
-text=Players can't draw cards. -- At the beginning of each player's draw step, that player loses 3 life, searches his or her library for a card, puts it into his or her hand, then shuffles his or her library.
-mana={1}{B}{B}
-type=Legendary Creature
-subtype=Elf Wizard
-power=2
-toughness=3
-[/card]
-[card]
 name=Marble Priest
 text=All Walls able to block Marble Priest do so. -- Prevent all combat damage that would be dealt to Marble Priest by Walls.
 mana={5}
@@ -10539,15 +10521,6 @@ power=3
 toughness=3
 [/card]
 [card]
-name=Mercenary Informer
-text=Mercenary Informer can't be the target of black spells or abilities from black sources. -- {2}{W}: Put target Mercenary on the bottom of its owner's library.
-mana={2}{W}
-type=Creature
-subtype=Human Rebel Mercenary
-power=2
-toughness=1
-[/card]
-[card]
 name=Merfolk Observer
 mana={1}{U}
 type=Creature
@@ -10708,12 +10681,6 @@ mana={1}{U}{B}
 type=Sorcery
 [/card]
 [card]
-name=Mind Swords
-text=If you control a Swamp, you may sacrifice a creature rather than pay Mind Swords's mana cost. -- Each player exiles two cards from his or her hand.
-mana={1}{B}
-type=Sorcery
-[/card]
-[card]
 name=Mind's Desire
 text=Shuffle your library. Then exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. (If it has X in its mana cost, X is 0.) -- Storm (When you cast this spell, copy it for each spell cast before it this turn.)
 mana={4}{U}{U}
@@ -11093,12 +11060,6 @@ toughness=2
 text={U}, Say your middle name: Moniker Mage can't be the target of spells or abilities this turn. {U}, Say an opponent's middle name: Moniker Mage gains flying until end of turn.
 [/card]
 [card]
-name=Monkey Cage
-text=When a creature enters the battlefield, sacrifice Monkey Cage and put X 2/2 green Ape creature tokens onto the battlefield, where X is that creature's converted mana cost.
-mana={5}
-type=Artifact
-[/card]
-[card]
 name=Monkey Monkey Monkey
 mana={3}{G}
 type=Creature — Ape
@@ -11346,15 +11307,6 @@ mana={6}
 type=Artifact
 [/card]
 [card]
-name=Myr Battlesphere
-mana={7}
-type=Artifact Creature
-subtype=Myr Construct
-power=4
-toughness=7
-text=When Myr Battlesphere enters the battlefield, put four 1/1 colorless Myr artifact creature tokens onto the battlefield. Whenever Myr Battlesphere attacks, you may tap X untapped Myr you control. If you do, Myr Battlesphere gets +X/+0 until end of turn and deals X damage to defending player.
-[/card]
-[card]
 name=Myr Reservoir
 mana={3}
 type=Artifact
@@ -11394,15 +11346,6 @@ mana={U}
 type=Enchantment
 [/card]
 [card]
-name=Mystic Snake
-text=Flash (You may cast this spell any time you could cast an instant.) -- When Mystic Snake enters the battlefield, counter target spell.
-mana={1}{G}{U}{U}
-type=Creature
-subtype=Snake
-power=2
-toughness=2
-[/card]
-[card]
 name=Mystic Speculation
 text=Buyback {2} (You may pay an additional {2} as you cast this spell. If you do, put this card into your hand as it resolves.) -- Scry 3. (To scry 3, look at the top three cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)
 mana={U}
@@ -11566,15 +11509,6 @@ mana={2}{B}
 type=Enchantment
 [/card]
 [card]
-name=Necropolis
-text=Defender (This creature can't attack.) -- Exile a creature card from your graveyard: Put X +0/+1 counters on Necropolis, where X is the exiled card's converted mana cost.
-mana={5}
-type=Artifact Creature
-subtype=Wall
-power=0
-toughness=1
-[/card]
-[card]
 name=Necropotence
 text=Skip your draw step. -- Whenever you discard a card, exile that card from your graveyard. -- Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.
 mana={B}{B}{B}