{+1}: Until end of turn, Sarkhan, the Dragonspeaker becomes a legendary 4/4 red Dragon creature with flying, indestructible, and haste.
(He doesn't lose loyalty while he's not a planeswalker.)
-{3}: Sarkhan, the Dragonspeaker deals 4 damage to target creature.
-{6}: You get an emblem with "At the beginning of your draw step, draw two additional cards" and "At the beginning of your end step, discard your hand."