Unit Analysis by Team BethelFrankel
Class
Dedicated mobbing Sniper.
Overall
S-
Advantages
+Second highest base attack out of all Fire characters
+Great DPR on active due to insane buffs to Vis generation; calcs put post-buff active at an average of 3 Actives every 4 turns, with splash damage against bosses
+Great for auto-farming because of her chain-kill combo potential
+Scales incredibly well in longer fights
Disadvantages
-– Small AoE on active means she has to rely on her chain for mobbing, which is problematic in certain stages
– The most MBT reliant Old Seal unit
Explanation
Frostfire is the weakest of the Old Seal characters, but the gap between her and the rest is nowhere near as big as you might think. While Sniping is worse than Detonation, her Vis generation let her put out Actives at an alarming rate, even outside of farming stages. She's now the undisputed mobbing queen, given that she has way better stats than Chandra and a relatively functional kit outside of chain killing. She also scales surprisingly well in long stages.
However, Frostfire is still outclassed by Giles at bossing. Her Active has very small AoE, and Giles is almost strictly better before MBT.