"Taken from the PSP version, but... yeah.

So you finally promoted her to rank 3.
Now you gotta raise her mana up to 1100 so you can make her a Skilled Flonne.

Thankfully, as of now, I got her up to 1100 mana and reincarnated her to Skilled form. Her largely being more of a magic/healing/archery character doesn't necessarily make that easy compared to Laharl or Etna. xD"