The rainbow damage will be fairly negligible without triple elemental pierce to make it even barely strong, let alone getting -135% to fire and lightning with the cold pierce.
Try
Qarak's Will
Qarak's Will
Giant Sword (Sacred)
One-Hand Damage: (150 - 163) to (233 - 246)
Two-Hand Damage: (206 - 225) to (285 - 305)
Required Level: 100
Required Strength: 480
Item Level: 105
Strength Damage Bonus: (0.16 per Strength)%
15% Chance to cast level 34 Spike Nova on Melee Attack
6% Chance to cast level 40 Pentagram on Melee Attack
10% Chance to cast level 36 Bloodlust on Kill
+(30 to 60)% Bonus Damage to Bloodlust
Adds 50-125 Damage
Adds 84-167 Fire Damage
+(26 to 38)% to Fire Spell Damage
+(140 to 170)% Enhanced Damage
+(100 to 250) Life after each Kill
5% Reanimate as: Random Monster
Socketed (4)
or a nice
Shark (Xis)
for the bloodlust boosts or
Durandal the Blazing Sword
Durandal the Blazing Sword
Claymore (Sacred)
One-Hand Damage: (208 - 220) to (361 - 373)
Two-Hand Damage: (263 - 280) to (415 - 433)
Required Level: 100
Required Strength: 450
Item Level: 105
Strength Damage Bonus: (0.16 per Strength)%
15% Chance to cast level 13 Shockwave on Melee Attack
+(2 to 3) to Barbarian Skill Levels
25% Attack Speed
Adds 100-250 Damage
(100 to 150)% Bonus to Attack Rating
+(172 to 200)% Enhanced Damage
+100 to Strength
(50 to 100)% Bonus to Defense
1% Reanimate as: Random Monster
Socketed (4)
for reanimates, wdm proc, and more defense amongst other things with a high def gilded shield craft or runeword with the Gladiator's Dominance oskill for max block. Even
Carsomyr
Carsomyr
Flamberge (Sacred)
One-Hand Damage: (244 - 263) to (330 - 350)
Two-Hand Damage: (320 - 350) to (400 - 431)
Required Level: 100
Required Strength: 600
Item Level: 120
Strength Damage Bonus: (0.16 per Strength)%
5% Chance to cast level 13 Shower of Rocks on Kill
50% Attack Speed
Adds 125-200 Damage
100% Bonus to Attack Rating
+(160 to 200)% Enhanced Damage
+(40 to 50) to Strength
+(40 to 50) to Vitality
Physical Resist 10%
+250 Life after each Kill
1% Reanimate as: Random Monster
Socketed (6)
can be nice though it focuses more on physical damage than cold, it will convert to cold and give you some DR and reanimates too, while still allowing a shield.
There's a ton of options, and you wont even need 25+ points into bear stance with that setup to put you at the 50% DR Cap and 75% max block too.