This is a frost dmg-based magicka warden DPS build.
Not exactly optimal, but I very much enjoy playing this build and it is one of the only optimal purely ice-based DPS builds you will find.

Gear:
5 Ysgramor’s Birthright
5 Winterborn
2 Iceheart
All armor enchanted w max magicka

Main Hand- Ysgramor’s ice staff enchanted with frost dmg
Off Hand- Maelstrom Ice Staff enchanted with weapon/spell dmg

Divines trait for all armor, Arcane for jewelry, and Infused for weapons

Rotation:
Just use buffs in backup bar and lay down blockade and winter’s revenge and then switch to main bar, use those buffs and debuff w ele drain and then spam force pulse. Rinse and Repeat.

This is a CASUAL build for players who are just looking to have fun with a frost damage dps character, however, a skilled player with this build can do decently well in most scenarios.