Whenever you cast a noncreature spell, put a +1/+1 counter on this creature.

Whenever you cast a noncreature spell, put a +1/+1 counter on this creature.

Trample

Whenever you cast a noncreature spell, put a +1/+1 counter on this creature.

Flying, haste

Whenever you cast a noncreature spell, put a +1/+1 counter on this creature.

Changeling (This card is every creature type.)

Whenever an opponent casts a spell, you may put a +1/+1 counter on this creature.

Whenever you cast a noncreature spell, this creature gets +3/+0 until end of turn.

Trample

Whenever you cast an instant or sorcery spell, put a +1/+1 counter on this creature.

Trample

Whenever you cast an instant or sorcery spell, put a +1/+1 counter on this creature.

: Until end of turn, whenever you cast a black spell, put a +1/+1 counter on this creature.

Haste

Whenever you cast a spell that targets this creature, put a +1/+1 counter on this creature, then scry 1.

At the beginning of your upkeep, put a -1/-1 counter on this creature.

Whenever you cast a noncreature spell, remove a -1/-1 counter from this creature.

Menace

Modular 2 (This creature enters with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Whenever you cast a spell other than your first spell each turn, put a +1/+1 counter on this creature.

Whenever you cast your first spell during each opponent's turn, put a +1/+1 counter on this creature.

Whenever you activate a boast ability, put a +1/+1 counter on this creature.

Whenever you sacrifice an artifact, put a +1/+1 counter on this creature and add .

First strike

Whenever another creature dies, you may put a +1/+1 counter on this creature.

Whenever you cast a noncreature spell, this creature gets +1/+0 until end of turn, then scry 1.

Whenever you expend 4, put a +1/+1 counter on this creature. (You expend 4 as you spend your fourth total mana to cast spells during a turn.)

: Add or .