My guild mates and I were discussing skills and we came up with a pretty cool idea for Necrotic Orb's morphs:
Mystic Orb: The orb changes to a matching element when wielding a staff and gains new effects.
Flaming Orb: Always applies the burning effect and deals 10% more explosion damage.
Lightning Orb: When an enemy is damaged it will chain to a nearby enemy.
Frozen Orb: Travels slower and deals 10% more Damage over time, affected enemies are snared.
Healing Orb: Same as Energy Orb.
(Let's be honest who would not want to throw out mini suns?)
Energy Orb reworked to Stamina morph. Renamed Purulent Orb:
Deals Disease Damage and inflicts Major Defile to affected targets when detonated.