Equip one weapon to a character (or in the case of Zael and Syrenne, two weapons).
Equip defensive equipment to a character. Every character can equip one Armor and one Legs part
(if you equip Calista's Dress it takes up both slots for Armor and Legs).
Equips a character according to his type (fighter/mage/healer) in order to maximize the needed stats.