Confuso

Scaling and Luminas

Level 2

Light damage can Burn on Critical hits.

Level 3

Apply 3 Burn instead of Mark.

Level 4

Increase Burn damage by 50% per Rank, up to 300% on Rank S.

How a grade turns into damage isn't confirmed yet; the grades and unlock steps are from the game's weapon table.

Where to get it 1

Areas come from where each chest and encounter is placed in the game's levels. Merchants' areas come from their names in the game's merchant table; a few rewards are handed out by scripted events and show as not placed.