Since this event gave us 4 lores (including CQ, which one... I guess wasn't hard with event CE, but I was kinda lazy to do it so I just used CS to clear it from first try with not optimal team I guess)...
I've finally raised my Asclepius to 10/10/10:
Hope he will help me in future story battles or CQ...
And now I've one free lore, which one I don't know on whom to use...
Should I go for 10/10/10 Tamamo (now 10/6/10), 6/10/6 Kiichi (6/6/6), 6/6/10 Liangyu (6/6/6) or raise Kintoki (to 6/10/6 probably (now level 50 1/-/-))?
I guess I've other options for every class from the list (except may be Tamamo for whom would be kinda hard to find equal or better arts support including that I don't have Castoria):
For assassin (Kiichi): First Hassan for boss fights, kinda Semiramis for farm despite she does quite less damage I still would prefer to use characters wise plus using buster is easier for me than quick, Serenity and Kojibro for ST farming (when I'm kinda lazy or can't 3T).
For lancer (Liangyu): Scathach for boss fights and ST farming, Karna for farming, Cu, Yu (her battery is already maxed), Nagao and Leonidas for all other cases...
For berseker (Kintoki): Lancelot for anything except 3T sadly since I don't have Skadi, Nyalter for ST farming and Spartacus for clearing waves in 3T...
Kinda Kintoki looks like save choise since he is the best option in his niche (arguable for Kiichi who still deals more damage than Semiramis and slightly questinoble in terms of idea to compere crits to ST NP in case with Lancelot whom I actually raised really good) while Tamamo's 2nd skill doesn't provides any support but only survability for her alone, but 5* mats is also kinda problematic, so I'm still debating...