Yubel, Unstable Guardian

Defender Flying
When Yubel, Unstable Guardian enters the battlefield create 2 0/2 plant creature tokens with defender
When Yubel, Unstable Guardian Would be dealt damage prevent it and all opponents are dealt damage equal to the damage prevented
When Yubel leaves the battlefield Search your library for a demon creature with 0 power and put it onto the battlefield
At the end of your turn sacrifice another creature or Yubel is sacrificed this ability cant trigger Yubel's previous Ability