Three-Headed Goblin [Unstable] Ancient Holy Warrior {1}: Inkmoth Nexus becomes a

{1}: Inkmoth Nexus becomes a 1/1 Blinkmoth artifact creature with flying and infect until end of turn

Set: Tempest Type: Artifact Rarity: Rare Cost: {2} If a creature with a magnet counter on it attacks

create a 1/3 black Demon creature token named Plaguebearer of Nurgle

and gain 1 memory for each red Tamer you have in play

Set: Ixalan Type: Enchantment Rarity: Uncommon Cost: {2}{U} Whenever you cast a Merfolk spell

Three-Headed Goblin [Unstable] Ancient Holy Warrior {1}: Inkmoth Nexus becomes aSet: 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.