Use Vine to grapple on your arcanists/sorcs.
If you need more Magicka sustain, you can use Spell Symmetry.
I would be recommend to have an Acuity trash setup for when you are planning on Ulting, and a sulxan setup otherwise, I show an exemple of both here.
If you do so, you can use Bear in your normal setup.
Maelstrom Ice Staff & Maelstrom Inferno staff are fairly similar, Fire wall will deal more damage but Ice wall has 7% chance to proc chilled status with the new warden passive and gives your team a shield against some attacks, so I pick whichever you prefer they are fairly similar DPS on average.
You can swap Wings for Deadly Cloak & Inner Light for Camo Hunter if your group provides you with satisfying Speed Buff uptime, but the stamina cost is hard to sustain.
Don't hesitate to destro ult big packs before bosses, you don't need an ult to engage with as you have Bear.
Use Azure setups when you are in raid, and Tarnished when you are in Dungeons/Solo.
You can swap out Spin2win if your group requiers you to be on Knife Duty, and use it instead.
Enjoy!