Roaring Furnace // Steaming Sauna

Card text

When you unlock this door, this Room deals damage equal to the number of cards in your hand to target creature an opponent controls.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

Market price

Latest aggregated market price for the normal finish of this printing: $0.31 (as of 2026-10-23).

The figure covers this printing only; other printings carry their own price on their own page.

Format legality

Legality of Roaring Furnace // Steaming Sauna by format. Formats in which it is not legal are not listed.

Other printings of Roaring Furnace // Steaming Sauna

Roaring Furnace // Steaming Sauna has been printed in 2 sets. The other printings are listed newest first, with the rarity and release year of each.

Official rulings

The 8 most recent official rulings for Roaring Furnace // Steaming Sauna, newest first.

• 2024-09-20 While in any zone other than the stack or the battlefield, a Room card's characteristics are a combination of its two doors. For example, Bottomless Pool // Locker Room has a mana value of 6 while it's in your library. If an effect allows you to search your library for a card with mana value 4 or less, you can't find Bottomless Pool // Locker Room.
• 2024-09-20 If a spell or ability would create a copy of a Room spell on the stack, the copy retains the choice of which door was cast but also retains the full characteristics of the spell. The characteristics of the door that wasn't cast are still ignored while the copy is on the stack, and when the copy resolves, the token it becomes will enter with the appropriate door unlocked.
• 2024-09-20 Each Room card has two names. If an effect instructs you to choose a card name, you may choose one of those names, but not both.
• 2024-09-20 If neither door of a Room is unlocked, it's a Room enchantment with no name and no abilities.
• 2024-09-20 Any time you have priority during a main phase of your turn and the stack is empty, you may pay the mana cost of a locked door (also called its "unlock cost"). That door becomes unlocked. This is a special action. It doesn't use the stack and can't be responded to.
• 2024-09-20 If a Room enters from any zone other than the stack, it will enter with both halves locked.
• 2024-09-20 If an effect allows you to cast a spell with certain characteristics, consider only the characteristics of the door you're casting. For example, if an effect allows you to cast a permanent spell with mana value 3 or less from among cards in your graveyard, you could cast Bottomless Pool this way, but not Locker Room.
• 2024-09-20 If multiple effects modify your hand size, apply them in timestamp order. For example, if you unlock Steaming Sauna and then put Null Profusion (an enchantment that says your maximum hand size is two) onto the battlefield, your maximum hand size would be two. However, if Null Profusion entered first and then you unlocked Steaming Sauna, you would have no maximum hand size.

Similar cards

Other enchantment cards with a blue and red colour identity, ranked by how often they appear in Commander decks.

• Thousand-Year Storm
• Frostcliff Siege
• Storm the Vault // Vault of Catlacan
• Sorcerer Class
• Fevered Visions
• The Lost and the Damned
• Clout of the Dominus
• The Apprentice's Folly