Abaut Wraith Form its work only when you use weapon but if you use spell it doesnt work.
Description: uoguide.
Transforms the Necromancer into the form of a wraith, well-suited for resisting physical damage, but weak against magic. No duration. Casting this spell again or casting another transformation spell dispels it. Once in wraith-form, Necromancers can use the "Recall" spell, as long as the spell is in their spellbook and they have the appropriate reagents. This is true even if their Magery skill is at 0. While under the influence of the this spell, the caster receives:
the ability to leech mana from the targets mana pool. (If the targets mana pool is empty then you leech nothing.) The amount leeched is based upon your Spirit Speak skill and the damage you do to the target by weapon or spell. Formula is Spirit Speak / 5:
At 0 Sprit Speak 8% of your damage is leeched as Mana
at 100 Spirit Speak it's 20%
at 120 Spirit Speak it's 24%
the ability to walk through creatures and players in Felucca
+15% physical resist
-5% fire resist
-5% energy resist
+25% damage from undead weapon