Reform the ranks !

Untap all your creatures, you gain an additionnal combat phase this turn.
Creatures that attack for the second time this
turn gains +1/+1 until end of turn.
Creatures that attack for the third time this turn gains +1/+1 and first strike until end of turn.
Creatures that attack for the fourth time this turn gains +1/+1, lifelink and first strike until end or turn.