Councilor Vey Hek

Flying
Propaganda Broadcast — {1}{b}, {t}: Creatures you control get +1/+1 and creatures your opponents control get -1/-1 until end of turn.
Sacrifice another Grineer: Regenerate Vey Hek.
If Councilor Vey Hek would die, instead exile
him, then return him to the battlefield
transformed.