Each Room card has two halves called "doors." When casting: - Choose one door to unlock - Pay the mana cost of the chosen half - Only the unlocked half's abilities apply After a Room is on the battlefield: - Unlock the other door by paying its mana cost as a sorcery - Unlocking is a special action that doesn't use the stack - Both halves' abilities become active after unlocking If a Room enters without being cast: - Both doors start locked - Unlock either door by paying its mana cost as a sorcery Characteristics of a Room card: - On battlefield: Based on unlocked door(s) - In other zones: Combined characteristics of both halves Copying a Room: - Copy has the same doors unlocked as the original - Locked doors of the copy can be unlocked later Dollmaker's Shop // Porcelain Gallery As a two-drop, Dollmaker's Shop is an efficient token generator that's already quite exciting in Commander

Like most Magic: The Gathering cards, the value of Beatrix, Loyal General depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Final Fantasy)
However, by and large these prices wont stick
First, like Vexing Shusher or other cards, Spellbreaker Behemoth can't be countered
Right now, according to TCGplayer, there are four gold-stamped art cards with a market price above $10: Y'shtola, Night's Blessed (Art card #53) $16.05 Nibelheim Aflame (Art card #35) $14.02 Sephiroth, Fabled SOLDIER (Art card #44) $10.47 Tifa, Martial Artist (Art card #52) $10.31 (this uses a stamped planeswalker symbol instead of an artist signature) Beyond those, there are another eight art cards currently above $5 (all of which contain the gold-stamped artist signature)
They cannot block, attack, and activate abilities, and then you gain four life