Originally Posted by
Mysterysword
At level 54, BLM gets Sharpcast. Hit that, Fire, then use the Firestarter proc you get. I really really really do not understand just why so many BLMs seem to forget that Sharpcast is a skill that exists.
The problem with hardcasting Fire III is that it consumes almost twice as much MP as regular Fire, doesn't do nearly enough damage to make up the difference, and takes a full second longer to cast. There's also the fact that the Firestarter trait means that BLMs spamming Fire would get free Fire III casts that are not only free, but also cast instantly.
TL;DR: Hardcasting Fire III is bad and the only reason to do it is when your rotation is already so screwed up that hardcasting 1 more spell wouldn't hurt anyway.