Esqium

Scaling and Luminas

Level 2

On turn start, consume each AP above 4 to gain 50% more damage per AP consumed.

Level 3

On Virtuose, all hits apply Burn.

Level 4

Using a Skill that costs less than 4 AP applies Mark to all enemies.

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.