Splinter, Sewer Hermit

Eminence —Whenever one or more Ninjas you control are blocked, if Splinter, Sewer Hermit is
in the command zone or on the battlefield, you
may remove a Ninja you control from combat.
Whenever a Ninja you control attacks, you may
pay {r/w}{r/w}. If you do, put two 0/1 Shadow Clone
creature tokens onto the battlefield tapped and
attacking.
Sacrifice All Shadow Clones at the end of
combat.