I was bored...

Max Damage Fire Sorc

Ormus +15%Fire +3Meteor (5/5 Fire Facet)
Eschuta's Temper +3 Skill, +20%Fire (5/5 Fire Facet)
+3 Fire Skills Amulet
Lidless Wall (5/5 Fire Facet)
+3 Fire Skills Circlet (5/5 Fire Facet)
Soj x 2
Arachnid Mesh
Magefist
10 Fire Skill Charms
Annihilus Charm
*Whatever for boots

Results:
-20 Enemy Fire Resistance
64624 - 66946 Meteor Damage
30953 - 33431 Fireball Damage
(Rounded Down)

Max Damage Poison Necro

Death's Web +2 Poison and Bone -50%PsnRes (5/5 Poison Facet)
Darkforce Spawn or Boneflame +3 Skills (5/5 Poison Facet)
Bramble Armor 50%PsnDmg
+3 Poison and Bone Circlet (5/5 Poison Facet)
Soj x 2
+3 Poison and Bone Skills Amulet
Arachnid Mesh
10 Poison and Bone Charms
Annihilus Charm
Trang-Oul's Claws
*Whatever for boots

Results:
-65 Enemy Poison Res
Poison Explosion Damage
139051 - 145834
(Rounded Down)



Note: There are stats on items that influenced my calculations that I did not list. I only listed the random stats to show that certain stats of the item have to be perfect.