Opposition Agent [Commander Legends] Darkness[-20] if there are no Zombies

if there are no Zombies on the battlefield

Set: Collectors' Edition Type: Artifact Rarity: Rare Cost: {2} {1}

Set: Core Set 2021 Prerelease Promos Type: Creature — Phyrexian Wurm Rarity: Mythic Cost: {3}{B}{B}{B} When Massacre Wurm enters the battlefield

Set: International Collectors' Edition Type: Creature — Goblin Warrior Rarity: Uncommon Cost: {R} {R}: Goblin Balloon Brigade gains flying until end of turn

But I doubt it

Opposition Agent [Commander Legends] Darkness[-20] if there are no ZombiesSet: Commander Legends Type: Creature Human Rogue Rarity: Rare Cost: {2}{B} Flash You control your opponents while they're searching their libraries. While an opponent is searching their library, they exile each card they find. You may play those cards for as long as they remain exiled, and you may spend mana as though it were mana of any color to cast them.