I am not really sure, it was super long ago but I think it was dragoon wizard, killed it with my High wizard back then and got my very first card dropped from it!
Better leave it as it is but you can do like , when there is 1% HP left , the skill cancels and the berserk is gone instead of having it when there is 100 or below HP left, If not then leave it as it is.
I prefered the previous sprite the rune knight had to be honest. This one reminds me of some star wars character and not a real cool knight like before.
Aww Sorry :( , had no choice but thanks a lot :D hahah , my lesson is almost over :( so I will have to go soon... sorry , you should really go sleep so you won't pass out :(, really sorry again xD