You can help testing and mage's guide by donating Exquisite Charged/Radiant Phase armour=====
Another Cold staff:
Legendary Arctic Redwood Staff of the Elementalist (Penetrator 4, Spellweaver 2, Archmage 3) [level 448; 5 forged]
Other Cold staffs:
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Legendary Arctic Oak Staff of Focus (Penetrator 4, Annihilator 5) [level 427; not forged]. 4 Phase + 1 Cotton. Run @ level 433: 4639 turns ( 24:29 min )
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Legendary Arctic Redwood Staff of Niflheim (Penetrator 4, Spellweaver 3, Annihilator 2) [level 433; not forged]. 3 Phase + 2 Cotton. Run @ level 441: 4040 turns ( 21:04 min )
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Legendary Arctic Redwood Staff of Niflheim (Penetrator 4, Spellweaver 3, Annihilator 2) [level 433; not forged]. 4 Phase + 1 Cotton. Run @ level 442: 4057 turns ( 21:37 min )
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Exquisite Arctic Redwood Staff of Destruction (Penetrator 5, Archmage 3, Economizer 1) [level 445; 5 forged]. 3 Phase + 2 Cotton. Run @ level 445: 4294 turns ( 22:34 min )
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Magnificent Arctic Willow Staff of Destruction (Penetrator 5, Archmage 1, Economizer 3) [level 446; 5 forged]. 3 Phase + 2 Cotton. Run @ level 446: 4209 turns ( 22:11 min )
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Legendary Arctic Redwood Staff of Focus (Penetrator 4, Spellweaver 4, Archmage 1) [level 447; 5 forged]. 3 Phase + 2 Cotton. Run @ level 447: 4288 turns ( 22:52 min )
- [This post] Legendary Arctic Redwood Staff of the Elementalist (Penetrator 4, Spellweaver 2, Archmage 3) [level 448; 5 forged]. 4 Phase + 1 Cotton. Run @ level 448: 3703 turns ( 19:30 min )
Level: 448
Day's damage bonus: Wind
Style: Imperil Cold Mage [ 4 Phase + 1 Cotton; Legendary Arctic Redwood Staff of the Elementalist - Penetrator 4, Spellweaver 2, Archmage 3 ]
Magic damage: 3112 ( 277.1% spell damage, 18.4% cast speed, 45.1% critical chance, 50% critical damage )
Proficiency: 839 elemental, 605 deprecating, 473 cloth, 473 staff
Health: 20040. Evade: 54.4%. Parry: 22.7%
Hath perks (battle relevant): +15% damage, +10% Health, +10% Mana, +50% in-combat regen, +10% Deprecating Proficiency, +10% Supportive Proficiency, Innate Arcana IV ( slotted: Spark of Life, Spirit Shield ), RiddleMaster
Turns: 3703 ( 19:30 min )
Stats, equipment, result:

P.S.
Yes, setup can clear all Arenas @ PFUDOR. 100 rounds - ~850 turns / 5 min, 60 - ~540 / 3.5 min.