Khalni Heart Expedition [Commander Masters] War of the Spark Tokens Set: Oath of the Gatewatch

Set: Oath of the Gatewatch Prerelease Promos Type: Land Rarity: Mythic Mirrorpool enters the battlefield tapped

Set: Conspiracy Type: Legendary Creature — Human Artificer Rarity: Mythic Cost: {1}{U}{U} {3}{U}

Might Type: Legendary Creature — Human Wizard Rarity: Mythic Cost: {1}{U}{R} {2}

It also features a number of creatures that have an effect on entering play

Khalni Heart Expedition [Commander Masters] War of the Spark Tokens Set: Oath of the GatewatchSet: Commander Masters Type: Enchantment Rarity: Common Cost: {1}{G} Landfall Whenever a land enters the battlefield under your control, you may put a quest counter on Khalni Heart Expedition. Remove three quest counters from Khalni Heart Expedition and sacrifice it: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle your library.