The Grand Calcutron [Unstable] Merfolk Warrior If you cast this spell

If you cast this spell during your main phase

Whenever Geist of Saint Traft attacks

Set: Battle for Zendikar Type: Creature — Eldrazi Rarity: Rare Cost: {2}{B}{R} Devoid (This card has no color

but some are too big to be kept

It's not known whether the Thran built the device to forge their wonders or to defend them

The Grand Calcutron [Unstable] Merfolk Warrior If you cast this spellSet: Unstable Type: Legendary Artifact Rarity: Mythic Cost: {W}{U} The Grand Calcutron can be your commander. When The Grand Calcutron enters the battlefield, each player's hand becomes a program (an ordered row of revealed cards). Players can only play the first card of their program. If a card would be put into a player's hand from anywhere, that player reveals it and places it anywhere within their program instead. At the beginning of each player's