Sunken Citadel [The Lost Caverns of Ixalan] Sponge Set: Explorers of Ixalan Type:

Set: Explorers of Ixalan Type: Sorcery Rarity: Mythic Cost: {3}{U}{U} Target player takes an extra turn after this one

Set: Commander 2016 Type: Legendary Enchantment Creature — God Rarity: Mythic Cost: {2}{R}{W} Indestructible

When Sword-Swallowing Seraph enters the battlefield

Set: Strixhaven: School of Mages Type: Sorcery Rarity: Common Cost: {2}{R} Approach of the Dragon deals 3 damage to each opponent

As long as you control a Gideon planeswalker

Sunken Citadel [The Lost Caverns of Ixalan] Sponge Set: Explorers of Ixalan Type:Set: The Lost Caverns of Ixalan Type: Land Cave Rarity: Rare Sunken Citadel enters the battlefield tapped. As it enters, choose a color. {T}: Add one mana of the chosen color. {T}: Add two mana of the chosen color. Spend this mana only to activate abilities of land sources.