You did better than me. Had been saving hoping they improved old CNY units enough. A lot of nostalgia for me since Chow/Ang were my first 5*s pretty much. Saw what new guys could do and said fuck it. 2 full laps were just 3 foos 1 Xuan but got me coins for prism yay. Luckily the new latents/awakenings were kind of not exciting since I'm mostly tapped out.
Another thing about Xuan is their damage is that good assuming mobs with equal spr/def. And with plenty that have at least a little lower spr or sometimes a lot the damage difference compared to other DDs can be more pronounced. It's probably the first time in a long time they made someone with magic damage this strong as others either were mages unable to use much in killers, squishy and locked to certain elements and/or had meh mods/lack of imbues.
Foo isn't too shabby either. Probably not the highest tier of support but close enough and with some niche abilities/turn efficiency that definitely side him in now and then. Like was great on bahamut v2... meta level mag break spr boost general and magical mitigation on t1 while filling esper gauge so on T2 can fill everyones LB gauge fully or do whatever. And then Xuan were basically built to beat him too so managed to do that with no tanks at all in 2 turns pretty easy
Also if you didn't check it out that new bundle is pretty good. 500 lapis and 5 expansion tickets for $1