The forge

Upgrade duplicates.

Combine identical copies into a higher rarity from the same crew. The input cards are consumed and the demo fee is simulated as burned.

My collection Find duplicates

Simulated and irreversible (in this demo)

Confirming an upgrade permanently removes the selected copies from your local collection and deducts the fee. No cards are minted on-chain; the new card is demo data only.

Unique cards

In your local collection

Total copies

All rarities

Upgrade-ready sets

Enough identical copies

Demo balance

40,000,000 PIRATE

Recipes

Three paths upward

Target card must belong to the same crew. No recipe for Legendary or Mythic cards.

CommonRare

5× Common → 1× Rare

Five identical Commons become one Rare from the same crew.

Simulated fee500,000 PIRATE

RareEpic

5× Rare → 1× Epic

Five identical Rares become one Epic from the same crew.

Simulated fee1,000,000 PIRATE

EpicLegendary

3× Epic → 1× Legendary

Three identical Epics become one Legendary from the same crew.

Simulated fee3,000,000 PIRATE

Step 1

Choose a duplicate set

2 ready

In progress

Coral

1/5 · 4 more needed

Kenji

1/3 · 2 more needed

Mira

2/5 · 3 more needed

Sano

1/5 · 4 more needed

Why same-crew targets?

Crew synergy keeps upgrades thematic and gives duplicate sets a meaningful choice. Targets are the next rarity up within the same crew — never a random off-crew card.

No global supply enforcement

Upgrading does not check proposed copy limits or any shared inventory. The prototype has no reliable backend supply ledger, so scarcity remains informational only.