Enhancement Stone

A Enhancement Stone is a consumable item in Cookie Run: OvenBreak. This item is used to enhance a Treasure when no Treasure Enhancement Tickets are owned. There is a high chance of failure when enhancing Treasures, and the odds of success are not effected by whether a Ticket or Stones are used. One chance to enhance a Treasure costs one Stone and 50,000 for a Rare Treasure and two Stones and 100,000 for an Epic.

Enhancement Stones are obtained each time an already maxed Treasure is received from any source, primarily the Gacha. Receiving a copy of a max Rare Treasure gives one Enhancement Stone, and receiving a copy of a maxed Epic Treasure gives two Enhancement Stones.

Until a newer player levels at least one Treasure to level 12, they won't receive Enhancement Stones from Treasure Draws, but can't use them regardless. This means they will naturally stock up on more Enhancement Tickets than Stones. Once a player reaches the point where they have a generous stockpile of Coins and at least their Rare Treasures are all max level, they will find Enhancement Stones to be more practical than Tickets.

Trivia

 * Enhancement Stones were a currency in the DrifterBat's Secret Emporium Event. Along with Rescue Tickets, they could be exchanged for various items.