Correct, ideally you’d replace the Fist of Az’Turasq with an ancient Lion’s Claw. Then I’d suggest you cube your Ring of Royal Grandeur (if you don’t have it cubed already) and swap the Ice Climbers and SSS belt for Captain Crimson set (that set is ideal for Uliana builds).
Your skill choices are very unoptimized. Beacon of Ytar is a must (20% CDR is very good and I’d swap out Exalted Soul). Cold EP has the highest damage of any rune. Windforce Flurry is decent but Assimilation has the most synergy. Mystic Ally is not very useful (plus you have the WORST rune), I’d swap it to Cyclone Strike (and cube Lefebvre’s or Spirit Guards). SSS should be Sustained Assault (more SSS means more dps). Desert Shroud rune will give you more toughness to keep you alive. Replace the amethyst in your helm with a diamond.