Boreas was always just wanting to be left alone, so much in fact, that he just started walling off everyone he saw.
This build guide is to help people understand the build and its functionality. There's a good chance you could make your own variation using a similar setup.
Boreas is a non-critically strikingdealing loner. He uses to punish hordes of enemies, charge his , cleanse ailments, and give him / . Between the casting and himself, it wont be uncommon to see 100+ stacks of on each of any large groups of enemies. Because our is in the 2000%+, it's also not uncommon for these enemies to never move from being frozen. This is also another one of our ward generators with . However, the magic really starts to come together with our . With over 2000% to our freeze rate we have more than 400% cold penetration with . This does not include our gear that has .
Defensively, Boreas is very tanky. With several methods of ward generation and a insane amount of retention, it would be normal to walk around an engagement with 3000 to 5000 ward. Ourgives us 1 ward per second for every 4% of resistances we have with . We gain a minimum of 75% to each resistance with . Giving us 525 plus whatever we have scaled in our gear (planner should be ~ 800) 525+800 = 1325. 1325/4 = 331 Ward per second. However, is also a significant source of damage. Since we only use in it's cold form, we gain only HEO runes, we capitalize this with the . This adds 15 per second to any enemy caught on it with Boreas. We also use it to apply 1 of our 2 Brands, , the other being which will apply at the same time thanks to our which is scaled as cold with . This will ensure both brands are applies to multiple enemies while we take advantage of and . Since the build is not based on crit, you won't one shot anything, but in "one-shot" you will be able to apply enough to kill most trash. (see echo demo)
As always, my builds never require LP to function, but the build can be improved if found.