Weapon skill leveling

Separate this from the Anvil.

The table is the lazy manual route: each recipe uses only SSR weapons. Raising fodder to SL2–4 does not reduce the total SSR copies consumed; it compresses the final feed into fewer slots.

The Anvil’s SL1 → 10 convenience applies to both cost curves, but it cannot run on SSR reserve points alone. It pre-levels SSR fodder using reserved R/SR points. Auto-reserve farmable R/SR weapons and keep reducing Premium Draw SR weapons for stones.

Reserve surplus farmable SSRs only after securing every grid, uncap, awakening, and specialty copy. Reduce later overflow when weapon stones or elemental materials are the actual bottleneck. Never auto-reserve Premium Draw SSR weapons.

Keep first. Feed directly later.

An Academy M1 weapon at SL10 carries 10,000 points. It exactly pays an Opus SL10 → 11 step. For Opus SL15 → 16, two SL10 M1 weapons cover 20,000 of 25,000 points; add SSR SL4 + SSR SL1.

Never recycle an already-leveled weapon into the Craftsman’s Anvil. Recycling records one SSR unit regardless of skill level, destroying the SL10 multiplier. Feed it directly once it has genuinely left every grid.

A 3★ Academy weapon instead reduces as four copies. Choose reduction when stones or elemental materials block M3; otherwise its 10,000 direct skill points are especially useful for Opus SL10–20.