Thief of Sanity [Guilds of Ravnica Prerelease Promos] Lizard Hydra The Great Furnace's blessing is

The Great Furnace's blessing is a spectacular sight

Sacrifice Full Moon's Rise: Regenerate all Werewolf creatures you control

each a failure to slay her

You may spend other mana only as though it were colorless mana

"The potential for change lies in all things

Thief of Sanity [Guilds of Ravnica Prerelease Promos] Lizard Hydra The Great Furnace's blessing isSet: Guilds of Ravnica Prerelease Promos Type: Creature Specter Rarity: Rare Cost: {1}{U}{B} Flying Whenever Thief of Sanity deals combat damage to a player, look at the top three cards of that player's library, exile one of them face down, then put the rest into their graveyard. You may look at and cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any type to cast that spell.