Goryo's Vengeance [Betrayers of Kamigawa] Mirrodin create a 3/3 colorless Phyrexian

create a 3/3 colorless Phyrexian Wurm artifact creature token with deathtouch and a 3/3 colorless Phyrexian Wurm artifact creature token with lifelink

if Mana Vault is tapped

Exile Metallurgic Summonings: Return all instant and sorcery cards from your graveyard to your hand

Karma deals damage to that player equal to the number of Swamps they control

His assistants calculate the amount of the tribute

Goryo's Vengeance [Betrayers of Kamigawa] Mirrodin create a 3/3 colorless PhyrexianSet: Betrayers of Kamigawa Type: Instant Arcane Rarity: Rare Cost: {1}{B} Return target legendary creature card from your graveyard to the battlefield. That creature gains haste. Exile it at the beginning of the next end step. Splice onto Arcane {2}{B} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)