Artifact Ward [Antiquities] Elemental Mutant If there are exactly two

If there are exactly two permanents named Brothers Yamazaki on the battlefield

Set: Legions Type: Creature — Goblin Mutant Rarity: Rare Cost: {1}{R}{R} Morph {3}{R}{R} (You may cast this card face down as a 2/2 creature for {3}

Set: Tenth Edition Type: Enchantment — Aura Rarity: Uncommon Cost: {2}{W}{W} Enchant creature

Set: Magic Origins Promos Type: Legendary Creature — Demon Rarity: Rare Cost: {4}{B}{B} Flying

Artifact Ward [Antiquities] Elemental Mutant If there are exactly twoSet: Antiquities Type: Enchantment Aura Rarity: Common Cost: {W} Enchant creature Enchanted creature can't be blocked by artifact creatures. Prevent all damage that would be dealt to enchanted creature by artifact sources. Enchanted creature can't be the target of abilities from artifact sources.