Mnemonic Betrayal [Guilds of Ravnica] New Phyrexia Prerelease Promos Set: Urza's Legacy Type: Enchantment

Set: Urza's Legacy Type: Enchantment Rarity: Rare Cost: {G} When an opponent casts an instant spell

What paradox were you expecting

Set: From the Vault: Dragons Type: Artifact Creature — Dragon Rarity: Rare Cost: {16} Domain — This spell costs {2} less to cast for each basic land type among lands you control

Set: Arabian Nights Type: Instant Rarity: Common Cost: {1}{W}{W} Attacking creatures get +2/+0 until end of turn

Mnemonic Betrayal [Guilds of Ravnica] New Phyrexia Prerelease Promos Set: Urza's Legacy Type: EnchantmentSet: 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.