Vaal Hazak, Maw of Flesh

+1: Choose one: An opponent discards a card. or Scry 1.
-3: Create a 0/1 Effluvium Cloud token creature with "Effluvium 1, this creature cannot be destroyed by spells. Destroy after 3 turns."
-7: Vaal Hazak, Maw of Flesh deals 4 damage to every creature an opponent controls. Create 2 Effuvium Cloud creature tokens.