Help with S.Alfonse

Give him a +spd refine on his weapon to put him at 39 spd, 42 if you choose to use Fury as A skill. I would suggest replacing his weapon with Slaying axe, but his default weapon is fine as well. For B slot, desperation or axe breaker would be good. C slot whatever you like. For SS I would give him close def to repair his -def bane. However speed seal can get him to 45 spd, which is amazing. These are just my thoughts hope it helps.

Everything person above me said. I would recommend desperation over axebreaker especially if using Fury, since axe users aren't incredibly common, people tend to go for mages for their green slot. His stat line is solid though and with not much competition on the mounted axe user front, he's a pretty good investment imo.