Ragavan, Nimble Pilferer [Multiverse Legends] Eternal Masters Set: The List Type: Legendary

Set: The List Type: Legendary Land Rarity: Rare If Gemstone Caverns is in your opening hand and you're not the starting player

Set: Secret Lair Drop Series Type: Enchantment Rarity: Rare Cost: {U}{U} Whenever an opponent casts a spell

Shatterskull Pass is a pretty distant second

It loves having family for dinner

Set: Judge Gift Cards 2011 Type: Creature — Human Wizard Rarity: Rare Cost: {1}{B} At the beginning of your upkeep

Ragavan, Nimble Pilferer [Multiverse Legends] Eternal Masters Set: The List Type: LegendarySet: Multiverse Legends Type: Legendary Creature Monkey Pirate Rarity: Mythic Cost: {R} Whenever Ragavan, Nimble Pilferer deals combat damage to a player, create a Treasure token and exile the top card of that player's library. Until end of turn, you may cast that card. Dash {1}{R} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)