Unicorn

alone makes it superior to any other Option.

Unicorn
Amazon Helms
'GhalArc'
Runeword Level: 100
3 Magic Missiles Projectiles
+(4 to 5) to Amazon Skill Levels
+(35 to 40) Spell Focus
+(17 to 20)% Bonus to Spell Focus
50% Cast Speed
Elemental Resists +(7 to 10)%
Fire Absorb 2%
Lightning Absorb 2%
Cold Absorb 2%
Amazon Helms
'GhalArc'
Runeword Level: 100
3 Magic Missiles Projectiles
+(4 to 5) to Amazon Skill Levels
+(35 to 40) Spell Focus
+(17 to 20)% Bonus to Spell Focus
50% Cast Speed
Elemental Resists +(7 to 10)%
Fire Absorb 2%
Lightning Absorb 2%
Cold Absorb 2%
The only way I can imagine using
Eaglehorn Mask
is combined with Solar Scion
and going dex + Nova Charge from 
Solar Scion
Scepter (Sacred)
One-Hand Damage: 29 to 34
Required Level: 110
Required Dexterity: 404
Item Level: 120
Dexterity Damage Bonus: (0.11 per Dexterity)%
Conductivity: Chance to Cast Doubled
+(5 to 7) to Amazon Skill Levels
2% Base Block Chance
+(100 to 200) Spell Focus
+50% Damage to Undead
+33% to Spell Damage
(15 to 20)% to Strength
(15 to 20)% to Energy
+(100 to 150) Life Regenerated per Second
Maximum Mana +10%
Socketed (3)
Scepter (Sacred)
One-Hand Damage: 29 to 34
Required Level: 110
Required Dexterity: 404
Item Level: 120
Dexterity Damage Bonus: (0.11 per Dexterity)%
Conductivity: Chance to Cast Doubled
+(5 to 7) to Amazon Skill Levels
2% Base Block Chance
+(100 to 200) Spell Focus
+50% Damage to Undead
+33% to Spell Damage
(15 to 20)% to Strength
(15 to 20)% to Energy
+(100 to 150) Life Regenerated per Second
Maximum Mana +10%
Socketed (3)
Elemental Band
for max block + less but okish Damage.
Elemental Band
Ring
Required Level: 100
Item Level: 120
+10% to Spell Damage
+1 to Path of Flames
+1 to Nova Charge
+1 to Lightning Arena
+1 to Hive
Ring
Required Level: 100
Item Level: 120
+10% to Spell Damage
+1 to Path of Flames
+1 to Nova Charge
+1 to Lightning Arena
+1 to Hive
Reagrding shields:
Witch Drum
is superior on every stat when rolled well (even on average rolls). + more Mo Space + one more jewel.
Witch Drum
Small Shield (Sacred)
Defense: (2638 - 3298) to (2841 - 3552)
Chance to Block: Class%
Required Level: 100
Required Strength: 300 to 350
Required Dexterity: 299 to 349
Item Level: 105
+(1 to 4) to Amazon Skill Levels
+(1 to 4) to Sorceress Skill Levels
+(1 to 4) to Assassin Skill Levels
+(25 to 40)% to Physical/Magic Spell Damage
+(15 to 30)% to Lightning Spell Damage
+(15 to 30)% to Cold Spell Damage
+(60 to 100)% Enhanced Defense
+1 to Energy (Based on Character Level)
Cannot Be Frozen
Requirements -(30 to 40)%
Socketed (4)
Small Shield (Sacred)
Defense: (2638 - 3298) to (2841 - 3552)
Chance to Block: Class%
Required Level: 100
Required Strength: 300 to 350
Required Dexterity: 299 to 349
Item Level: 105
+(1 to 4) to Amazon Skill Levels
+(1 to 4) to Sorceress Skill Levels
+(1 to 4) to Assassin Skill Levels
+(25 to 40)% to Physical/Magic Spell Damage
+(15 to 30)% to Lightning Spell Damage
+(15 to 30)% to Cold Spell Damage
+(60 to 100)% Enhanced Defense
+1 to Energy (Based on Character Level)
Cannot Be Frozen
Requirements -(30 to 40)%
Socketed (4)