Sliv-Mizzet, Hivemind [Mystery Booster Playtest Cards] Oath of the Gatewatch Prerelease Promos Put one of them into

Put one of them into your hand and the other on the bottom of your library

They found something far greater

Set: Grand Prix Promos Type: Tribal Sorcery — Eldrazi Rarity: Rare Cost: {7} Each player sacrifices all colored permanents they control

then return it to its owner's hand

Whenever the fourth spell of a turn is cast

Sliv-Mizzet, Hivemind [Mystery Booster Playtest Cards] Oath of the Gatewatch Prerelease Promos Put one of them intoSet: Mystery Booster Playtest Cards Type: Legendary Creature Dragon Sliver Rarity: Rare Cost: {2}{U}{U}{R}{R} Slivers you control have flying and "Whenever you draw a card, this creature deals 1 damage to any target" and "{T}: Draw a card." (^17S)180 = (Z >)90