Active Skills are ones which you can use in-battle and outside of them, as well. Using them consumes Magic Points (MP), which can be replenished by using items or the Healer NPC. There are skills unique to each character, as well as ones that can be learned by multiple characters.
BALDREN'S SKILLS
Shield Bash
Earth Crusher
Star's Fury
Lightning Strike
TRISHA'S SKILLS
Painful Aim
Speedy Riposte
Hydra Byte
Heaven's Call
DOZERU'S SKILLS
Guard's Strike
Faceslapper
Piercing Charge
Orion's Gift
Charming Slice
Knightly Lance
GORODO'S SKILLS
Head Twister
Maniac's Wish
Dual Strike
Twirling Rampage
Salto Mortale