Elspeth, Storm Slayer — Tarkir: Dragonstorm #411

If one or more tokens would be created under your control, twice that many of those tokens are created instead.

+1: Create a 1/1 white Soldier creature token.

0: Put a +1/+1 counter on each creature you control. Those creatures gain flying until your next turn.

−3: Destroy target creature an opponent controls with mana value 3 or greater.