Trap

Overdrive:{u}{r} (When this creature enters
the battlefield, you may pay an additional
{u}{r} for any amount of times. Deal 4 damage
to any target for every time you payed the
overdrive cost)
{u}{u}{u}{r}{r}{r}: Deal 5 damage to a target
player and every creature they control.
{6}{x}: Take X extra turns.