https://pobb.in/CQZHDNTz5ZFX

(Disclaimer - the majority of the PoB is based on Zizaran's latest Archmage Ice nova 3.25 PoB - https://www.youtube.com/watch?v=Kbu2hLKek18, also, this is theoretical, I haven't played this exact build, but have tried this skill in the past and played Archmage many times, so I'm sure it'll work as intended)

Endgame version - 13mil DPS and 82k EHP (15.7mil DPS and 126k EHP with Frost Shield & Sigil of Power on)

Budget league start version - 4.3mil DPS and 61k EHP (5.5mil DPS and 93k EPH with Frost Shield & Sigil of Power on)

* Can league start? yup, use budget version

* SSF friendly? Budget version is, Endgame version is not (You can use the endgame version as a template and build it into endgame your own way)

* HC Friendly? I don't play HC so IDK, but it has pretty decent defenses and Max Hit so it's on you to decide.

* About Cold snap of Power - Has really high Effectiveness of added damage (320%) and base Crit Chance (10%), the draw back is that it has a cooldown of 3 seconds.

* How it works - You can bypass the 3 seconds cooldown by "expanding" a power charge (In simpler words, by "eatting" 1 power charge), in order to generate power charges and not get stuck between 0 and 1 charges we link the skill with Spell Echo, so you get 2 casts per use.

* Why not use Spell Cascade? - It's hard to make the 4-5 instances overlap (need over 4.7m AOE according to some old videos/reddit posts, and even then, it doesn't look like they overlap in a narrow enough spot to "shotgun" a boss), the DPS is already good and we have a radius of 4.0m which is more than enough for clear.

* Defense - We have a high amount of Life, Mana and ES, with 50% Mind over matter and 1.6k mana regen, Corrupted Soul (Which splits damage taken between all 3 life/mana/es) and Instant leech for both Life and ES, along with 100% Spell suppression, full elemental ailment immunity, effectively stun immune, 4 endurance charges, 75% allress and 75% chaos res.

* Offense - Huge amount of flat lightning damage from Archmage, 9 Power charges, consistent 50% Shock effect on Pinnacle bosses (Thanks to Lightning Mastery), Conductivity, Wrath aura (Eternal Blessing)

* QoL - Automated Arcane Cloak (Linked to Automation), giga fast Frostblink (Can replace with or add Flame dash for instant teleport), 1 Button playstyle mapping, need to activate Conductivity, Sigil of Power and Frost Shield for Bosses/hard encounters (AoE of Sigil and Frost Shield are HUGE). We link CWDT with regular Cold snap for a kind of reliable generation of Frenzy Charges while mapping (doesn't work for bosses).

Leveling - use literally any spell skill you want and 4 link it with Increased Crit strikes, Increased Crit dmg and Faster casting/conc effect/elemental focus untill you get your hands on the transfigured Cold Snap of Power (Don't forget to link it with Power charge on Crit, Spell Echo and Increased Critical Strikes to reliably bypass the CD. If you're still having trouble sustaining power charges, get more sources of crit chance (Diamond Flask, Crit chance on tree, Precision aura).