Nothing special besides that I picked C2 Jean as my free 5 star last 5.0 event. The standard for abyss has been getting harder as they increase enemy HP to 350% but this prove him to be still available.
As F2p, Ayato is the first character that make my Abyss journey goes smoothly since his first release, back then my Xiangling don't even have C4 yet, so any national team are rather mediocre in my case. This bring back memories lol. (If any of you wonder how I cleared bottom half I use Chasca hypercarry team with Ororon, Mona and Bennet, mostly I still have 20-40 second after clearing each floor 12-2-1 is the hardest in my opinion as vishaps enemy are pretty thick)