Spend only black and/or red mana on X.
Soul Burn deals X damage to target creature or player. 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 Soul Burn dealt damage, or the creature's toughness.

• Number: 31
• Rarity: C
• Type: Sorcery
• Mana cost: X2B
• Color: Black
• Artist: Rob Alexander