Random ideas
Legion of Doom
Colossal Tower Shield
+4500-6000 Armor
+15-25 All Resistances (includes Chaos)
Iron Reflexes
All melee attacks grant Fortify.
Physical Attack Damage dealt is calculated by Armor. Every X Armor Gain x-x physical damage. (balance it accordingly, it should probably be scaled enough to be as strong as a late game facebreaker build)
Your Spells Deal No Damage (needs a downside , make it so spellcasters can't use it as a defense)
Unique Amulet (no idea for name)
+40-50 Life
+5-10 elemental resistances
Damage dealt by monsters are unlucky when damaging you when at 10% life or less.
All equipped gear and gems are dropped upon death.
Effects from this weapon take no effect if life is reserved or mirror'd items are equipped.