Foul Familiar

(T: Add B.)

Guerrilla Tactics deals 2 damage to any target. When a spell or ability an opponent controls causes you to discard this card, it deals 4 damage to any target.

1RG, T: Exile this creature and target creature without flying that's attacking you.

(T: Add R.)

(T: Add G.)

When this creature enters, sacrifice it unless you discard a card at random.

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

Spend only black and/or red mana on X. Soul Burn deals X damage to any target. You gain life equal to the damage dealt, but not more than the amount of B spent on X, the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.