Schematic

Exchange a stack at the Tinkerer for a powerful Blueprint of choice. Sprite Credits: LMaelstrom

Stack Limit: 50

Soulbound

Loot Bag
Drops From	Killer Bee Queen The Beekeeper Crystal Worm Mother Crystal Entity Factory Control Core Malus Marble Colossus The Bridge Sentinel Twilight Archmage

Notes
Fifty of these (one full stack) can be exchanged at The Tinkerer in the Forgotten Craftsmanship quest for one out of up to 8 blueprints of choice. This quest is repeatable (all blueprints could be claimed if player gathered enough schematics), and changes every two weeks, with items being replaced by the next set of two rows in a given order.

A blueprint is available for every S tier item, except for the Incubation Mace (which is in the Ancient Schematic pool) and UTs from the Kogbold Steamworks. It also includes most items from The Shatters.

A variant of this token available from more difficult bosses is the Ancient Schematic.

Rotations
Items in the current rotation are highlighted in green, and run from 16 Apr (24) - 30 Apr (24).
Items in the next expected rotation are highlighted in blue, and should run from 30 Apr (24) - 14 May (24).

Staff of Unholy Sacrifice	Skull of Corrupted Souls	Ritual Robe	Bloodshed Ring
.	Irradiance Sheath	Queen’s Stinger	.
Yellow Beehemoth Quiver	Red Beehemoth Quiver	Blue Beehemoth Quiver	.
Hivemind Mace	Hivemaster Helm	Echoes Prism	Crystallised Mist
Royal Guard’s Cuirass	Vest of Abandoned Shadows	Mantle of the Monarchy	Warmonger
Dusky Catalyst	Valor	Primal Arcana	Sentinel’s Sidearm
Polarity Poison	Noble Mandolin	Vanguard’s Visage	Peacekeeper
Crystal Shield	Cloak of Refraction	Crystallised Fang’s Venom	The Twilight Gemstone

History
For the first two rotations, the cost of the quest was a 100 schematics (two full stacks) with only 4 blueprints available at a time.

On May 3 (2022), previously event exclusive Irradiance Sheath blueprint has appeared in a quest for the first time.