Trinisphere [From the Vault: Exiled] 95 "The Rime of the Ancient

"The Rime of the Ancient Mariner"

also your opponent's cards and effects cannot activate when a monster is Fusion Summoned this way

but how do we get down

Set: Black & White: Plasma Freeze Type: Darkness Rarity: Holo Rare Retreat cost: Colorless

Trinisphere [From the Vault: Exiled] 95 "The Rime of the AncientSet: From the Vault: Exiled Type: Artifact Rarity: Mythic Cost: {3} As long as Trinisphere is untapped, each spell that would cost less than three mana to cast costs three mana to cast. (Additional mana in the cost may be paid with any color of mana or colorless mana. For example, a spell that would cost {1}{B} to cast costs {2}{B} to cast instead.) Designed to restrain petty thoughts, but used to repress entire empires.