Valgavoth, Terror Eater [Duskmourn: House of Horror] Pauper and even rival inventors with

and even rival inventors with their accompanying robots

This worked perfectly in the lab

Creatures you control have menace

Exile Expropriate

Valgavoth, Terror Eater [Duskmourn: House of Horror] Pauper and even rival inventors withSet: Duskmourn: House of Horror Type: Legendary Creature Elder Demon Rarity: Mythic Cost: {6}{B}{B}{B} Flying, lifelink WardSacrifice three nonland permanents. If a card you didn't control would be put into an opponent's graveyard from anywhere, exile it instead. During your turn, you may play cards exiled with Valgavoth. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost.