LF Valdaci Guardian https://www.poxnora.com/trader/viewtrade.do?id=3822993 ( Arroyo Riftlord ) https://www.poxnora.com/trader/viewtrade.do?id=3822994 ( The Silent Master)
All these exos are going to drop in price so it doesn't really matter whether people do 1:1 or whatever.
Honestly, were people really expecting different? KF and UD are often among if not the most popular factions at a given time. Add in sexy-ish (relatively) tree ladies with solid ranged and melee options, and the recent push/popularity of De'lim... The only thing that'd probably make them more sought after would have been giving some of them random Bleed (and Bleed related) options on upgrades.
Here you go. I'd love a Naria Mindtap if you have one. https://www.poxnora.com/trader/viewtrade.do?id=3823426