Gastem, goddess of mysteries

Defender. Whenever a god you control deals damage to another player, return a card from exile to the battlefield. This has power equal to your devotion to black and green.
{b}{g}{t}:exile target permanent you control. If you exiled a creature this turn, this gains deathtouch and is indestructible until the end of turn. If this has indestructible, this can attack and Is a god until end of turn.
"I hide the most mysterious things from the prismakhians. Until they remember, I always like secrets!"