I found level 1 of Healing to be quite handy. I didn't play a mage, or use any summons (other than the creature). While my warrior did use a bow a fair bit, at least early to mid game, I didn't invest in any ranger skills.
For the dragon form I removed all equipment except for the Bone Dragon Cuirass (+40% hit points) and Bone Dragon Leggings (+40% offense) once I could max Firebreath, Fire Sphere, Dragon Spirit and Dragon Burst without the need for equipment spell bonuses. I didn't use Dragon Burst that much (came in handy a couple times), and never tried the summon, shield or polymorph spells.
