Unexpected Possibility costs
less during an extra turn.
Shuffle all permanents into their owner’s library. Each player reveals the top seven cards of their library and puts all non-aura permanents revealed this way onto the battlefield. Then, each player may cast any number of instants, sorceries, and auras revealed this way without paying their mana cost.
If you cast or put at least five cards with different mana values onto the battlefield this way, transform Unexpected Possibility after it resolves.