Currently this is the only fighter healing in the game that is not percent based. It needs to be changed. My suggestion: Arena Endurance On a successful combat art this spell will cast Arena's Endurance on caster. Heals caster for 2.0% of Max Health. Heals caster for 5+0.5*lvl Mana. (This can critical and is affected by potency.) This puts Arena Endurance up to par with other classes advanced achievements.