Draylas, Vengeance Prodigy

Double strike
Whenever you cast another Ninja Rogue, add {e} equal to its converted mana cost, then you
may tap Dreylas, Vengeance Prodigy and spend
any amount of {e}. If you do, tap each creature opponents control with toughness less than or
equal to the amount of {e} you spent this way.
They don't untap during their controller's next
untap step.