43% chaos res, 16% lightning damage, 15% cast speed amethyst ring price check open prefix

Hi guys, I am reletively new to the game. Started playing properly (past level 30) in sentinel. This is my second craft. is it any good? I am thinking of putting an exalted orb on it with crusader prefix.

Item Class: Rings
Rarity: Rare
Woe Coil
Amethyst Ring
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Requirements:
Level: 54
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Item Level: 85
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+23% to Chaos Resistance (implicit)
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16% increased Lightning Damage
15% increased Cast Speed
+31 to maximum Mana
+20% to Cold and Chaos Resistances
+51 to maximum Life (crafted)