Relentless

If an opponent gained life, prevented damage or
drew this turn, take an extra turn after this one.
And it came to pass that the people repented not of
their iniquity; and the people of Coriantumr were
stirred up to anger against the people of Shiz; and the
people of Shiz were stirred up to anger against the
people of Coriantumr; wherefore, the people of Shiz
did give battle unto the people of Coriantumr.
-Ether 15:6