Need advice on Winter Orb Build

As the title says, need some advice to get my Winter Orb character a bit more tanky for Sirus and Maven if possible.

I know Winter Orb is best for clearing and my setup is for AOE, but it would be awsome if there is a way to get it more boss viable.

here's the pob
https://pastebin.com/r457vRR8

thx

Shieeeeeeeeeeeeeeeeeeeeeet :O

Since you're not reserving life, I'd recommend CI with a heavier investment into ES, until you can get ahold of Shav's for lowlife (use the excess life for more auras).

Grab notables, such as Unnatural Calm, and Melding (probably only with Energy From Within in the nearby Jewel Sockect - otherwise this probably isn't worth it).

Sirus deals a fair bit of Chaos damage, so you're effectively ignoring that portion of his damage with CI.

Additionally, with a pool of 6K ES, you're should be capable of taking a good hit from him. Run Vaal Discipline for the bonus ES and ES recharge as well.

Edit: Also consider that AOE in general helps for single target with Orb of Winter - the projectiles can shotgun.