Three-Headed Goblin [Unstable] Merfolk Wizard Metalcraft — If you control

Metalcraft — If you control three or more artifacts

I'd leave it alone

Set: Mirrodin Besieged Type: Creature — Human Wizard Rarity: Uncommon Cost: {2}{U} When Treasure Mage enters the battlefield

Opening Orazca unleashed more horrors than just the Immortal Sun

Set: Exodus Type: Creature — Human Wizard Rarity: Uncommon Cost: {R}{R} {R}

Three-Headed Goblin [Unstable] Merfolk Wizard Metalcraft — If you controlSet: 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.