Bahamut.Alexcennah said:
»Bludgeon forever
bludgeon forever ^^^^^^
This spell was really OP in the early days and was useful for so damn long.
But if I'm ranking one spell that meant the most for me, it's probably disseverment. BLU was my first 75, so I didn't have sea access when I finished leveling it. After I went through all the pains and tears for CoP and got the spell, I finally feel my BLU was "complete". Word can't describe such feelings.
If I'm picking one spell for modern era BLU, it'd be mighty guard. took a break years ago and the first thing I heard after I came back was "Go learn Mighty Guard".
Honorable mention would be Absolute terror I think. Back in 2013 when I used it in ceizak delve on that evil scorpion NM, my JP LS's reaction was satisfying to watch. BLU wasn't a thing in endgame back then, and they all started to love BLU for delve runs after they see how absolute terror did on that NM.