She's not bad at all. She's not as sturdy as Cordelia but is better suited for facing mages.
Supports are relationship ranks between certain characters that increase whenever they fight side by side or while Paired Up. Paired characters with higher support ranks have a higher chance of assisting each other in combat by attacking and deflecting enemy attacks, and characters will also get bonuses to accuracy, avoidance, crit chance, and crit avoidance when fighting next to someone with higher Support rank.
Thanks will do ^-^ Also I do like Sumias personality a lot. Also shes got like 20 skill at lvl14 for me, so that and a killer lance teamed up with someone that gives +5 skill and all i gotta do is throw her out and watch everyone suicide on her.