Three-Headed Goblin [Unstable] Merfolk Wizard you may destroy target creature

you may destroy target creature if it's tapped

"Doesn't look like much

Set: Mercadian Masques Type: Enchantment Rarity: Rare Cost: {2}{G} Exile a creature you control: Add X mana of any one color

Set: Eventide Type: Creature — Elf Druid Rarity: Rare Cost: {1}{G} {T}: For each color among permanents you control

Three-Headed Goblin [Unstable] Merfolk Wizard you may destroy target creatureSet: Unstable Type: Creature Goblin Mutant Rarity: Rare Cost: {3}{R}{R} Triple strike (This creature deals first strike, regular, and last strike combat damage.) It's true that two heads are better than one, but after that you run into diminishing returns.