pob:https://pobb.in/6Ptlo3-53f8ZThis is an implementation of Tempered by war + shadowed rings + unbreakable. Basically armour will be applied to fire and cold/lightning respectively, hence giving huge damage reduction.
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90/77/77 ele res + 120k armour + fortify against 30k cold damage from uber bosses (8 penetration as default in pob). With Tempered by war + a shadowed ring (75% cold damage taken from hits converted to fire in total), unbreakable works as 40% damage reduction overall, while only as 18% damage reduction overall without damage taken conversion.