Xander A skill

Distant defense can potentially help him survive versus some green mages he'd otherwise die to. Close defense can help him survive some scary sword units like Ayra or Mia he'd otherwise die to. His weakness is that he can't be merged and can't survive top tier buffed units in these classes regardless of build. QR/Bonfire seems best though.

I've given him Brazen Att/Def from 4* Ares and now he take only 0 damage when he is under 80%