Deck upgrade calculator

Pick cards or just set a rarity per slot — the cost depends only on rarity and levels, so you don’t need specific cards. Set current and target levels and we’ll count the copies and gold, plus the gems it takes to buy any copies you’re short of. Levels of player #9P88RYJ.

Total to target

1.3M
Gold
1.6K
Copies
19.5K
Gems
Common
1,333
Epic
213
Legendary
69

Every level costs copies + gold. If you don’t have enough copies, the missing ones can be bought with gems — so an upgrade is either copies + gold, or gems (for the missing copies) + gold. Gem prices follow the official table (December 2025), proportional to the shortage; gold itself is not converted to gems.

  • Freeze1
    0 copies0 gold0 gems
    Now
    16
    Target
    16
  • Barbarians2
    0 copies0 gold0 gems
    Now
    16
    Target
    16
  • Electro Giant3
    131 copies210K gold2.8K gems
    Now
    14
    Target
    16
  • Princess4
    0 copies0 gold0 gems
    Now
    16
    Target
    16
  • Sparky5
    49 copies335K gold10.2K gems
    Now
    11
    Target
    16
  • The Log6
    20 copies310K gold4.2K gems
    Now
    12
    Target
    16
  • Dark Prince7
    82 copies210K gold1.8K gems
    Now
    14
    Target
    16
  • Minions8
    1.3K copies210K gold480 gems
    Now
    14
    Target
    16