Added 38 successfully tested cards.

This update contents:

1. Creatures which get a certain power- and/or toughness-bonus when attacking or blocking.

2. Creatures which leave the battlefield at end of combat after having attacked or blocked.

3. Clockwork-"family" from Mirrodin.

projects/mtg/bin/Res/sets/ALL/_cards.dat

@@ -381,6 +381,19 @@ rarity=U
 type=Land
 [/card]
 [card]
+text=Defender   Whenever Shield Sphere blocks, put a -0/-1 counter on it.
+id=3056
+name=Shield Sphere
+rarity=U
+mana={0}
+type=Artifact Creature
+subtype=Wall
+auto=@each combatdamage:counter(0/-1) all(shield sphere[blocking]|myBattlefield) && counter(0/1) all(other shield sphere[blocking]|myBattlefield)
+power=0
+toughness=6
+abilities=defender
+[/card]
+[card]
 text=Whenever Soldevi Steam Beast becomes tapped, target opponent gains 2 life.   {2}: Regenerate Soldevi Steam Beast.
 id=3061
 name=Soldevi Steam Beast

projects/mtg/bin/Res/sets/ALL/todo.dat

@@ -22,7 +22,6 @@ type=Instant
 text=Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep. You draw a card at the beginning of the next turn's upkeep.
 rarity=C
 [/card]
-
 [card]
 id=3042
 name=Ashnod's Cylix
@@ -1076,17 +1075,6 @@ text=If Sheltered Valley would enter the battlefield, instead sacrifice each oth
 rarity=R
 [/card]
 [card]
-id=3056
-name=Shield Sphere
-mana={0}
-type=Artifact Creature
-subtype=Wall
-power=0
-toughness=6
-text=Defender Whenever Shield Sphere blocks, put a -0/-1 counter on it.
-rarity=U
-[/card]
-[card]
 id=3057
 name=Sol Grail
 mana={3}