Jack of Sigils
Win a mission carrying four or more spells, none raised past its first rank.

Two checks at the win: at least four spells, and every spell still at rank 1. A single upgrade to rank 2 breaks the attempt. Passives are allowed.

Winning route

Start a new expedition as the Warden-Mage and take its first node — 80 seconds, and the only mission that starts with an empty build. In the war-march panel set the stage to Stage 1 / 12; the picker opens on the stage you last started, and later stages are harder on every node. Arc Bolt is your first spell. The ground is drawn at random; this run drew Sundered Ruins.
Collect gems when the path opens. On each draft take a new spell, never a card labelled Lv 2. This run added War Sentry, Sentry Ward, Ward Orbs, Line Breaker and Gale Aura — six spells in all, every one still Lv 1.
Once the fourth spell appears in the lower-right bar, stay alive through Mission Complete. If a later draft offers no new spell, choose a passive rather than upgrading one.

Full run

One continuous screen recording from the main menu through the mission, with the actual draft choices and six rank-1 spell icons at the finish, to the earned achievement in the game ledger. Original game music and effects, recorded live; no commentary. The run was played by a scripted test player using only the game's normal controls at a person's pace, not by a person; failed attempts were discarded.

Six spell icons, each marked Lv 1, in the lower-right game HUD — Six spell icons, all Lv 1, three seconds before the win — the state the writ checks.

War Sentry marked NEW above an Arc Bolt Lv 2 choice — Choose NEW War Sentry; the Arc Bolt Lv 2 card would break the run.

Second draft showing Sentry Ward and other new spell choices — At the next draft, choose another new spell: Sentry Ward here.

Mission Complete at level 6 with 206 foes felled — Mission Complete at level 6.

Game achievement ledger showing Jack of Sigils earned — Jack of Sigils unlocked in the same run. Open the image to read the ledger.