When this creature enters, put a +1/+1 counter on target creature you control.

, , Sacrifice an artifact or land: Draw a card.

Mobilize 2 (Whenever this creature attacks, create two tapped and attacking 1/1 red Warrior creature tokens. Sacrifice them at the beginning of the next end step.)
Attacking tokens you control have deathtouch.

Exhaust abilities of other permanents you control cost less to activate.
Exhaust — : Creatures and Vehicles you control gain trample until end of turn. Put two +1/+1 counters on this creature. (Activate each exhaust ability only once.)

This creature enters with X +1/+1 counters on it.
When this creature leaves the battlefield, put its counters on target creature you control.
Warp (You may cast this card from your hand for its warp cost. Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.)

Flying, first strike, ward
Whenever Captain America attacks, each other Hero you control gets +X/+X until end of turn, where X is Captain America's toughness.

When Victor Mancha enters, exile target card from your graveyard. You may play it for as long as you control Victor Mancha.

Target player draws four cards.

Invasive Maneuvers deals 3 damage to target creature. It deals 5 damage instead if you control a Spacecraft.

Deathtouch

Furious Reprisal deals 2 damage to each of two targets.

Trample
Whenever you cast a spell with mana value 4 or greater, put a +1/+1 counter on this creature.

Enchant creature
When this Aura enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

: Add one mana of any color.

Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)
When this creature is turned face up, put a +1/+1 counter on each creature you control. Creatures you control gain trample until end of turn.

Flying
Whenever this creature deals combat damage to a player or planeswalker, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

When Brawn enters, draw a card.
Power-up — : Put a +1/+1 counter on Brawn for each card in your hand. (Activate each power-up ability only once. Reduce the cost by his mana cost if he entered this turn.)

This creature has reach as long as it has a +1/+1 counter on it. (It can block creatures with flying.)

This creature enters prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)

When this creature enters, look at the top four cards of your library. You may reveal a Kithkin, Forest, or Plains card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.