Masterworks

Forge a blade of a family to +20 and that family's masterwork joins the relic shop for good. All of them are legendary, and the shop offers them from day 6 to 8 depending on the relic.

Unyielding Cornerstone
Unyielding Cornerstone

The first Break of each sword becomes Damage.

Each sword's first Break becomes Damage instead. Unlike Wirebound Scabbard it works once per sword, not once per day.

Shop from day 74 sword credits

Continent-Cleaving Iron CitadelUnlockCitadel Sword MasteryForge a Citadel Sword to +20.
Dawn Scabbard
Dawn Scabbard

Pass 40% of a broken sword's enhancement to the next unforged +0 sword. Inheriting enhancement grants 4 Frenzy charges. Enhancement and charges add together with Broken Holy Sword.

When a sword above +0 breaks, the next untouched +0 sword inherits 40% of its level and starts with 4 Frenzy charge. Stacks with Broken Holy Sword to 70% and 7.

Shop from day 63 sword credits

ExcaliburUnlockHoly Sword MasteryForge a Holy Sword to +20.
Ceaseless Driveshaft
Ceaseless Driveshaft

Every 2 Successes: an extra +1 level.

Counts plain Successes on each sword (they don't need to be consecutive). Every second one adds a level.

Shop from day 74 sword credits

Unstoppable Gears of RuinUnlockSawblade MasteryForge a Sawblade to +20.
Dragon Heart
Dragon Heart

At +7 or higher, each Success or Great: sword value +15%.

If the sword was +7 or higher before the strike, every Success or Great multiplies its value by 1.15.

Shop from day 84 sword credits

Demon Blade: DragonslayerUnlockDragonfang MasteryForge a Dragonfang to +20.
Perfect Mana Core
Perfect Mana Core

+6 Great tickets during Frenzy.

Adds 6 Great tickets during Frenzy only.

Shop from day 74 sword credits

Akasha, Blade of GenesisUnlockRuneblade MasteryForge a Runeblade to +20.
Seal of Twins
Seal of Twins

Each surviving strike has a 2% chance to duplicate the sword.

Every strike the sword survives has a 2% chance to produce an identical copy, with the same level, value and relic stacks, on the floor beside you.

Shop from day 84 sword credits

Sovereign of BladesUnlockSplitblade MasteryForge a Splitblade to +20.
Eternal Seed
Eternal Seed

+6 Hold tickets. Each Hold: sword base value +40 G.

Adds 6 Hold tickets, and each Hold adds 40 G of base value that scales with every later level.

Shop from day 74 sword credits

Yggdrasil, the World TreeUnlockWorld Tree MasteryForge a World Tree to +20.
Abyssal Pearl
Abyssal Pearl

+3 Damage tickets. The first 2 Damages of each sword do not lower its level. Damage relics still activate.

Adds 3 Damage tickets. The first 2 Damage results on each sword take no level, and relics that fire on Damage still fire.

Shop from day 74 sword credits

Leviathan's FangUnlockFishblade MasteryForge a Fishblade to +20.