Knuckles the Echidna

First strike, double strike
Reckless Rage: there are no creatures but Knuckles
the Echidna on the battlefield under your control
and another creature you control died this turn,
create an extra combat step. When ever Knuckles
the Echidna deals damage during this step, create
an extra combat step and your opponent draws a
card. They may play this card without paying its
mana cost. Knuckles the Echidna has protection
from combat damage during this step.