Soljeela, King of WUBRG

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