Soooo I managed with lots of gear I succesfully made a Bane of the winter king Crown of the Winter King and Heart of the mountain Hybrid pet build that can clear Ultimate SC and is quite fun to play.
It needs some optimization cause Its a mana guzzler and Im significantly lacking bleed resist but other than that its viable.
The idea was to use those 3 items and the active on the helmet as your spam attack its a cool fun skill but not very good sadly still its fun plus you get 3 permanent summons and the primal spirit and blade spirit if you want when needed.
heres my grimcalc withought bonuses: Winter King Trickster
For devotions the goal is to get leviathan and kraken and the skill blizzard from Amatok the spirit of winter.
Im just stocked that I found a way to use those items and wanted to share my joy 