Mnemonic Betrayal [Guilds of Ravnica] Gatecrash return it to the battlefield

return it to the battlefield under your control at the beginning of the next end step

you create a 2/2 green Wolf creature token and that player mills ten cards

Set: New Phyrexia Type: Enchantment — Aura Rarity: Rare Cost: {B}{B} Enchant creature

Sacrifice Verdant Catacombs: Search your library for a Swamp or Forest card

"After his death

Mnemonic Betrayal [Guilds of Ravnica] Gatecrash return it to the battlefieldSet: Guilds of Ravnica Type: Sorcery Rarity: Mythic Cost: {1}{U}{B} Exile all opponents' graveyards. You may cast spells from among those cards this turn, and you may spend mana as though it were mana of any type to cast those spells. At the beginning of the next end step, if any of those cards remain exiled, return them to their owners' graveyards. Exile Mnemonic Betrayal.