Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

As an additional cost to cast this spell, pay X life.
Target creature gets +X/+0 until end of turn.

Flying
This creature can't attack unless you sacrifice a land. (This cost is paid as attackers are declared.)

This creature enters with four +1/+1 counters on it.
Remove a +1/+1 counter from this creature: Add .

Discard a card: You may tap or untap target artifact, creature, or land.

Flying
Discard a card: Return this creature to its owner's hand.

First strike
At the beginning of your upkeep, sacrifice this creature unless you pay .
Whenever this creature deals damage to a creature, exile that creature.

This creature enters with six +1/+1 counters on it.
, Remove a +1/+1 counter from this creature: Put a +1/+1 counter on target creature.
, Remove a +1/+1 counter from this creature: Regenerate this creature.