the best orb for light caster is heart of hell because of its defensive stats and becaue alternatives like Eschuta's Temper or short circuit do very little extra damage.

Dont know if some of these ideas are possible but I Thought i would maybe help inspire your creative item making by sharing some ideas.

  1. +1500 mana +10-20 mana shield like north pole marker
  2. golem with conviction
  3. receive increasing life/mana regen the more you cast nova or chainlightning
  4. receive lvl 50 cyclone armour when mana gets below 50%
  5. +20 shiver armour and change element to lightning and adds mana/life regen
    10% chance to raise zombie/skeleton from corpse
  6. When mana shield is activated revieve 20% max poison res


the list is not meant as one item but random inspiration