Yiga Blademaster

Flash
You control your opponents while they're
searching their libraries.
While an opponent is searching their library,
they exile each card they find. You may play
those cards for as long as they remain exiled,
and you may spend mana as though it were
mana of any color to cast them.
A leader of the clan set on serving the will of the
Demon King to defeat Link and Zelda.