Emrakul, the Promised End [Eldritch Moon Prerelease Promos] Human Assassin "The best way to teach

"The best way to teach is by example

Negate the activation of a Trap Card and destroy it

"This is the forest primeval

destroy all Fiend-Type monsters Special Summoned by this effect

An Xyz Monster whose original Type is Beast-Warrior and has this card as material gains this effect

Emrakul, the Promised End [Eldritch Moon Prerelease Promos] Human Assassin "The best way to teachSet: Eldritch Moon Prerelease Promos Type: Legendary Creature Eldrazi Rarity: Mythic Cost: {13} This spell costs {1} less to cast for each card type among cards in your graveyard. When you cast this spell, you gain control of target opponent during that player's next turn. After that turn, that player takes an extra turn. Flying, trample, protection from instants An enigma as vexing as life itself.