Spooky20

When Donatello enters, if you control an artifact, draw a card.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Enchant land Whenever enchanted land is tapped for mana, its controller adds an additional {G}{G}.

Destroy target artifact or enchantment.

When this creature enters, create a Mutagen token. (It's an artifact with "{1}, {T}, Sacrifice this token: Put a +1/+1 counter on target creature. ...

{W}, {T}: Tap target creature.

Counter target spell unless its controller pays {3}.

When this creature enters, create a Mutagen token. (It's an artifact with "{1}, {T}, Sacrifice this token: Put a +1/+1 counter on target creature. ...

Whenever this creature attacks, it gets +2/+0 until end of turn.

Reach (This creature can block creatures with flying.)

Flying When this creature enters, you lose 2 life.

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.) Whenever enchanted creature attacks or blocks, i...

Flying (This creature can't be blocked except by creatures with flying or reach.)

Flying (This creature can't be blocked except by creatures with flying or reach.) When this creature enters, destroy target enchantment.

Target creature gets +3/+3 and gains flying until end of turn. (It can't be blocked except by creatures with flying or reach.)

Enchant creature Enchanted creature can't attack or block. {5}, Sacrifice this Aura: Exile enchanted creature. You create a 1/1 black Ninja creatur...

When Jennika enters, create a 2/2 red Mutant creature token. Plainscycling {2} ({2}, Discard this card: Search your library for a Plains card, reve...

Put target nonland permanent on top of its owner's library.

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {U} or {R}.

This creature gets +1/+2 as long as you have one or fewer cards in hand.

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control."