I recently summoned a +def -hp s!Leo. I know those aren't optimal IVs, but an HP seal generally fixes the bane for me. What I want to do is make him a better tanky and offensive unit, especially since I've been in need for a decent red mage in general for PvE. Most builds recommend Fury 3, but using it on s!Leo has been causing me more problems than not, the -6 hp penalty greatly harming his tanking potential even with an HP seal. I've been leaning towards death blow 3 to give him a better player phase, and I already have a fully built TA3 Robin for my colourless needs. Which A skill is best out of the three for s!Leo? Or is there a more suitable one?
Definitely not TA. S!Leo has the second highest RES in the game and you don't want to lock him into an anti-green role when, out of the box, he stands up to the Blue Mage meta better than any other Red. Death Blow and kin aren't great for S!Leo's baiting play style but Distant/Close Defense would work. Fortress Def would harm his ATK but could also work.
Personally...I'd keep Fury but give the team some healing - Breath of Life or Renewal + Recip Aid if not a staff user.
If you're willing to invest, you could give Leo Blarblade (+), Deathblow 3, Quick riposte, and his default C skill to make him a good offensive unit/green mage counter
This set could would go with your TA Robin if he has lancebreaker 3 in order to cover the majority of the weapon triangle aside from blue mages and some green axe users with high res (which is pretty rare as top tiered units like Hector tend to have low res)
Quick riposte could be used to take advantage of his high res stat in order to reliably kill some red mages and green mages (which are pretty popular due to the lack of top tiered axe units)
Death Blow combined with blarblade buffs to increase his offensive potential
Well, that's just how I would build him. You're free to do whatever you want
I think Fury 3 might actually be the best of the three tbh. I'd pair him with a unit with Ardent Sacrifice and Desperation so you could help replenish the HP he's burning on Fury use while pushing another unit into Desperation mode. Or with a healer since healers are more usable in PvE.
Death Blow and L&D 3 are too rare of skills tbh to invest on someone for PvE only. You might also consider Darting Blow 3, a much more common skill than either, which would help mitigate his fairly middling speed.
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