Defeated the MAX Level Tentacle Monster; Lucretia's Sky Dance was EXTREMELY noticeable in the impact it had on the fight even though the boss has 90% Damage Reduction from any non-frontline class. Her power up was the difference between time-out and victory, because she allowed every other girl to rapid fire their powers significantly faster. Really glad to see she's so wonderful here.
Funnily enough though the Proof Earned from beating this thing fits Witch perfectly rather than her.
I gave it to Perili though since she can also use it. +100 Attack and M.Defense is pretty sick.