Bag planner

Every artifact sits at level 0 until tablets move it. A tablet is a list of query lines, each naming a slot pattern relative to the tablet (a neighbor, the whole row, a diagonal, a checkerboard) and what happens there: add or subtract levels, disable the slot, ignore its placement rule, or multiply its level. Rotatable tablets rewrite those patterns when turned, so "right +1" becomes "above +1" after one rotation. Some tablets only apply while their own placement condition holds, for example only on the bottom row.

Each artifact has a level cap, and levels above it do nothing for the effect itself. A negative level turns the artifact off entirely, and a handful of artifacts carry placement rules (top row only, border slots only, an artifact on both sides) that must hold unless a tablet grants an exemption. Weapon-bound artifacts such as the golem parts also need the matching weapon type equipped; pick one in the toolbar to check those.

Set bonuses count how many placed artifacts share a category. The count runs before tablet effects, so even a disabled artifact still feeds its set, which makes low-value duplicates worth carrying for the combo alone. Tiers step at 2 through 6 artifacts for most categories.

Not simulated: engraved tablets, the enchant levels duplicate unique artifacts convert into, per-dungeon temporary levels, mystic slots, and mixed custom tablets (their queries exist only per run). The full-HP activation rule is assumed to hold. Everything else, including every query keyword the 1.0 tablets use, follows the game's own rules.