Genta, Gateman of Dark World

Defender
Exiled Knight - When Genta, Gateman of Dark World is exiled while you control a permanent with Dark World in its name, bring Genta into play tapped. You can only bring Genta, Gateman of Dark World into play once per turn.
Gateman - {b}, discard Genta: Search your library for up to one The gates of Dark World and add it to your hand.