Dolmir, Ally in War

Flying.
Rally — Whenever Dolmir, Ally in War or
another Ally enters the battlefield under your control, each opponent loses 1 life and you gain
equal to the life lost this way.
{w}{b}, {t}: Create a 1/2 white and black Ally
creature token with "Cohort — {t}, Tap an
untapped Ally you control: Untap target
creature you control."