Рефанд

When the attached card is played, all mana spent to play it is fully refunded. This effectively makes the card free in terms of mana expenditure. Unlike the Free To Play gem, the original card cost is used for combo judgment — meaning a cost-3 card with this gem is treated as a cost-3 play for combo purposes while still returning all mana. This allows combo chains to be maintained while dramatically reducing mana consumption.

The exact unlock condition is unknown. It is believed to be unlocked by completing a specific run or fulfilling a certain in-game condition.

Most effective on medium-cost cards (cost 2–3), as the mana savings are substantial. Because combo judgment uses the original cost (unlike Free To Play which makes the card cost 0), this gem is especially powerful in combo builds where maintaining the combo chain while conserving mana is the priority.

Tier A — An excellent Uncommon gem that balances combo maintenance with mana efficiency. Requires understanding the difference from Free To Play for optimal use. Approaches top-tier value in dedicated combo builds.