Sneak Attack [Urza's Saga] Human Mystic Hellfire deals X plus 3

Hellfire deals X plus 3 damage to you

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {0} Destroy target nonblack creature

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {U} Change the target of target spell with a single target unless that spell's controller pays {2}

Set: Portal Three Kingdoms Type: Creature — Cat Rarity: Uncommon Cost: {2}{G} Whenever Trained Cheetah becomes blocked

Sneak Attack [Urza's Saga] Human Mystic Hellfire deals X plus 3Set: Urza's Saga Type: Enchantment Rarity: Rare Cost: {3}{R} {R}: You may put a creature card from your hand onto the battlefield. That creature gains haste. Sacrifice the creature at the beginning of the next end step. "Nothin' beat surprise'cept rock."