Phantom Monster [Beta Edition] Merfolk Assassin players can't cast instant spells

players can't cast instant spells or activate abilities that aren't mana abilities

but you may put it on top of your library instead of into your graveyard

and the brightest thunder-bolt is elicited from the darkest storm

Set: Khans of Tarkir Prerelease Promos Type: Creature — Zombie Wizard Rarity: Rare Cost: {3}{B}{G}{U} At the beginning of your upkeep

Phantom Monster [Beta Edition] Merfolk Assassin players can't cast instant spellsSet: Beta Edition Type: Creature Illusion Rarity: Uncommon Cost: {3}{U} Flying "While, like a ghastly rapid river, Through the pale door, A hideous throng rush out forever, And laughbut smile no more." Edgar Allan Poe, "The Haunted Palace"