Sentinel of Lost Lore [Wilds of Eldraine] SWSH203 you may reveal a Dragon

you may reveal a Dragon card from your hand or choose a Dragon you control

"There's always room for improvement

Set: Kaldheim Prerelease Promos Type: Sorcery Rarity: Mythic Cost: {4}{B}{B} Choose a creature type

Set: Sword & Shield: Vivid Voltage Type: Colorless Rarity: Ultra Rare Retreat cost: Colorless

Set: The Brothers' War Promos Type: Artifact Creature — Artifact Creature — Ape Rarity: Rare Cost: {3} When Simian Simulacrum enters the battlefield

Sentinel of Lost Lore [Wilds of Eldraine] SWSH203 you may reveal a DragonSet: Wilds of Eldraine Type: Creature Elf Knight Rarity: Rare Cost: {1}{G}{G} When Sentinel of Lost Lore enters the battlefield, choose one or more Return target card you own in exile that has an Adventure to your hand. Put target card you don't own in exile that has an Adventure on the bottom of its owner's library. Exile target player's graveyard.