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 #LULC9VRRP.

Total to target

785K
Gold
21K
Copies
15.7K
Gems
Common
20,986
Legendary
39

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.

  • Tesla1
    7.5K copies120K gold2.7K gems
    Now
    15
    Target
    16
  • Ice Wizard2
    39 copies335K gold8.1K gems
    Now
    11
    Target
    16
  • Knight3
    0 copies0 gold0 gems
    Now
    16
    Target
    16
  • Skeletons4
    6K copies120K gold2.2K gems
    Now
    15
    Target
    16
  • Ice Spirit5
    0 copies0 gold0 gems
    Now
    16
    Target
    16
  • The Log6
    0 copies0 gold0 gems
    Now
    16
    Target
    16
  • Rocket7
    0 copies0 gold0 gems
    Now
    16
    Target
    16
  • Royal Delivery8
    7.5K copies210K gold2.7K gems
    Now
    14
    Target
    16