Whenever this creature attacks, you gain 2 life. Then creatures you control gain trample and get +X/+X until end of turn, where X is the amount of life you gained this turn.

Emerge {6}{G}{G}{G} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When you cast this spell, creatures you control get +2/+2 and gain trample until end of turn. Trample, haste

Vigilance, trample, haste When this creature enters, other creatures you control get +2/+2 and gain vigilance and trample until end of turn.

Creatures you control get +2/+2 and gain trample until end of turn. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)

Creatures you control gain vigilance and trample until end of turn. Roll a d20. 1—9 | Creatures you control get +2/+2 until end of turn. 10—19 | Put two +1/+1 counters on each creature you control. 20 | Put four +1/+1 counters on each creature you control.