Kida, Crystal Guardian

+2: You get 2 energy counters.
-2: Search your library and/or graveyard for an Artifact and put that card into your hand. If you searched your deck this way, shuffle it.
-5: Until end of turn, Kida, Crystal Guardian becomes a 6/6 Spirit creature with Indestructible and Deathtouch. It's still a Planeswalker.