Birbitoaster Leader

Haste, Berserk 1(At the beginning of combat, this card gains indestructible and +1 +1 until end of combat. Then, if it would be put into a graveyard, exile it instead.)
When this card enters the battlefield, create a Plans artifact token with "Sacrifice this card, search your library for a creature card."
When this card leaves the battlefield, create a Plans artifact token with "Sacrifice this card, search your library for a creature card."