Bloodfeather might actually be underrated
Ok, I know, I know, people have been recommending to just turn her into a lizard (along with some other folks). But I kind of tried to test her, and I think I found a niche for her-temporary as it might be.
Basically, she's a Wallmart's Great Value, poor man's heavy hitter, control champ.
I haven't max her to the top because of the general opinion on her (and my upgrade qeue), but I feel she's up to something in Bronze II. With so many Magic champs around dishing out AOE like there's no tommorrow, she's proven to be quite the fighter. I use her with Sir Nicholas for Immortality and Shield, along with Serris for extra debuffs.
Also, she's rather easy to get for F2P players.
Being the fastest in the team, she actually works well at reducing turn bars, giving chance to others in the team.
Not going to drag this any longer. She's a one-trick pony who likes to kick hard and rely on affinity to reduce incoming Magic damage, so she's best at maxing Crit Prob/DMG > SPD/ATK > DEF > HP.
Here's how I built her.
She doesn't like you.