Battle Trance

At the beginning of each players end step,
that player sacrifices each creature that
didn't attack or enter the battlefield this turn.
White and/or green permanents you control
can't be sacrificed.
———{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}
Some warriors fight as a means to an end, others just fight for an end.