I'm wrong, Sword is compatible with existing AdventX rear derailleurs.. the new Sword derailleur just has a couple of upgrades to it that make it a better choice in the end. Updated clutch, replaceable cages for 1x or 2x, swivel thingy for the cable routing, and I'd argue it looks better without the obvious looking clutch switch. They increased the cable pull for the brakes.. not the shifting.
@skibob $160 for the pair. LBS got them for me. Took them a hot minute to actually become available since the groupset was announced in July, LBS had them on order for close to three months for me. Still waiting on the rear derailleur but it's not really important as I can't ride this bike till April. Rear derailleur is about $70 and the matching crankset is about $100.
@cantunamunch I've only dry shifted them so far but they feel light and plenty clicky, reminds me of the 11speed Shimano 105 that I had on my first cross bike 6 years ago. It'll do single clicks into the smaller cogs and up to 3 clicks as your dropping into the bigger cogs. Plus you can actually see the ratchet mechanism in the shifter! I suppose it could be an issue with dirt and grime.. but you can see it so you can clean it. Now as they are compatible with Advent X, I may go ahead and install them over the weekend just to see how the shifting is. I rather enjoy the AdventX mtb shifters I've used, very positive clicking and satisfying thunks into place but it did lack the 100% precision on shifts that I have on SRAM or Shimano mechanical shifting.