Iskandar, King of Conquerors

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. After this phase, there is an additional combat phase. Activate only during combat

"Whatever you do, enjoy it to the fullest. That is the secret of life."