Malenia, Blade of Miquella

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 untilend of turn.
After this phase, there is an additional combat
phase. Activate only during combat.
...Heed my words. I am Malenia. Blade of Miquella.
And I have never known defeat.