Abilities
As with all your characters in Odin Sphere Leifthrasir, make sure to get Recovery Up, Charge Up, and Power Supply to keep you POW and HP up. Infiltrate is also a good ability to have when Cornelius is low on HP. This lets him slip past all foes while dodging when your HP is 30% or lower – perfect for getting straight to a Rest Area, or healing up when you need to.
Ground Force and Backstab are also very useful abilities for Cornelius. Ground Force increases your ground damage by 10%, and Backstab increases your damage dealt by 20% when attacking from behind. Since Cornelius is a character that specializes in slipping past foes and getting by them, Backstab will be invaluable for him. It’s also worth investing into the Parry ability if you enjoy blocking enemy attacks. With this ability, simply press forward after guarding an attack, and Cornelius will perform a good counterattack.