Force of Will [Eternal Masters]Set: Eternal Masters Type: Instant Rarity: Mythic Cost: {3}{U}{U} You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost. Counter target spell. "I alone determine my destiny."

Set: EX: Legend Maker Type: Psychic Rarity: Promo Retreat cost: Colorless

Set: Unlimited Edition Type: Artifact Rarity: Rare Cost: {4} All Swamps are 1/1 black creatures that are still lands

Set: Ravnica: City of Guilds Type: Sorcery Rarity: Rare Cost: {5}{U} Choose a card name

Set: Planechase Planes Type: Plane — Serra's Realm Rarity: Common When you planeswalk away from Sanctum of Serra

Eventually

Or these vials of invisible potion

{T}: Add one mana of any of the exiled card's colors

Set: Sword & Shield: Battle Styles Type: Fire Rarity: Ultra Rare Retreat cost: Colorless

you draw a card

Set: EX: Crystal Guardians Type: Colorless Rarity: Rare Retreat cost: Colorless

Set: Unlimited Edition Type: Sorcery Rarity: Rare Cost: {1}{W} Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest

You may look at it for as long as it remains exiled