Fira-Jade, Devil's Choice

{r}{w}: Fira deal 2 damage to target creature, if that creature died, exile it instead and put a devil counter on Fira. Otherwise, that creature gain Indestructible until end of turn. Activate only twice during each turn and Fira can't use this ability on it.

Battalion: Put a devil counter on it and attacking creature get +1/-1 and Indestructible until end turn.

Whenever Fira have five or more devil counter on it, transform it.