Its a little more expensive than Kumenas Awakening, but it doesnt have the downside, and comes with the opportunity to play a free spell
In sets where there are more than one showcase, like Midnight Hunt, these will only be from one style, such as the Equinox frame
It has strong control cards, but few big threats (relatively speaking.) It also does card advantage well, with things like Trinket Mage, Volition Reins and Halt Order
If you open Central Elevator // Promising Stairwell in your first Play Booster, that can set you up for a wild Rooms deck
"Flashforward [cost]" means "You may cast this card from exile by paying [cost] rather than paying its mana cost" and "If the flashforward cost was paid, put this card on the bottom of its owner's library instead of putting it anywhere else any time it would leave the stack." You must still follow any timing restrictions and permissions, including those based on the card's type