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Fusing and Polishing Spares

Duplicates are never wasted. Every copy past your first of a card's finish is a spare, and spares can be fused or polished.

Fusing

Fuse 3 spares of the same rarity into one random card of a higher rarity:

• 80% of the time it's one rarity up, 17% two rarities up and 3% three, up to Legendary.
• If you're missing cards of that rarity, there's a 50% chance the result is one you don't have yet.
• Fused cards have 2× the normal chance of a special finish.
• Fusing 3 Legendary spares gives a Lost World card: 75% Legendary, 25% Mythic.

Polishing

Polishing upgrades one specific card. Open it in your collection, pick a finish, and turn 3 spare copies of it into 1 copy of the next finish up. You always keep at least one copy of each finish.

Every step multiplies, so a polished Solid Gold is a real achievement. Special finishes from packs skip steps. Seasonal finishes can't be polished.

Which should you do?

Polish the cards you love, since it's the only guaranteed way to a Galaxy or Solid Gold version. Fuse the rest, especially Commons, to fill gaps in your collection faster.

Trophies

Every set has a trophy for completing it and one for each finish, from Standard up to Solid Gold, plus the four seasonal finishes. Master trophies cover every card in a finish, all the way up to the Master Collector trophy for all 891 versions. There are 73 in all, and each one pays out free packs.