Najeela, a Furiosa

Whenever a Warrior attacks, you may have its controller create a 1/1 white Warrior creature token that's tapped and attacking.
{w}{u}{u}{b}{r}{g}: Untap all attacking creatures.They gain trample, lifelink, and
haste until end of turn. After this phase, there
is an additional combat phase. Activate only during combat.