Fixes to commander damage, deathtouch, MAT card variants.

March of the Machine: The Aftermath (MAT) card variants.
The previous implementation of the deathtouch ability had a bug that destroyed planeswalkers even with any amount of damage. This has been fixed.
If a player has been dealt 21 points of combat damage by a particular Commander during the game, that player loses a game. The damage rule with commanders was incorrect in counting any type of damage, not only combat damage.

Bug fixes:
Athreos, Shroud-Veiled
Endless Atlas
Natural State
Savage Gorger
Kytheon's Irregulars
Lion Sash
Pyrophobia
Minas Tirith
Sakashima of a Thousand Faces

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

@@ -65232,8 +65232,8 @@ toughness=2
 [/card]
 [card]
 name=Kytheon's Irregulars
-auto={W}{W}:tap target(creature)
 auto=_RENOWN_(1)
+auto={W}{W}:tap target(creature)
 text=Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.) -- {W}{W}: Tap target creature.
 mana={2}{W}{W}
 type=Creature
@@ -78500,7 +78500,7 @@ type=Sorcery
 [card]
 name=Natural State
 auto=destroy
-target=artifact,enchantment[manacost<=3]
+target=*[artifact;enchantment;manacost<=3]
 text=Destroy target artifact or enchantment with mana value 3 or less.
 mana={G}
 type=Instant
@@ -117224,7 +117224,7 @@ type=Artifact
 [/card]
 [card]
 name=Syphon Flesh
-auto=ability$! sacrifice notatarget(creature|mybattlefield) and!( _ZOMBIETOKEN_ opponent )! !$ opponent
+auto=ability$! sacrifice notatarget(creature|mybattlefield) and!( _ZOMBIETOKEN_ )! opponent !$ opponent
 text=Each other player sacrifices a creature. You put a 2/2 black Zombie creature token onto the battlefield for each creature sacrificed this way.
 mana={4}{B}
 type=Sorcery