Najeela, the Blade Blossom

Whenever a Warrior attacks, you may have
its controller create a 1/1 white Warrior
creature 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 combat phase, there is
an additional combat phase. Activate this
abilityonly during combat