Thread:ChongShyuan/@comment-4802891-20170521103636/@comment-28209103-20170601140739

you need 50 copy of 4 star fou of both type to reach 2k. basically it's fou equivalent of Palingenesis.

well at least they gave you a chance to make certain broken servant more broken.. but I'm sure it'll take a lot of time.. even by doing the event we'll only get 10 fou of both type.. therefore it'll be around 5-10 more event before we have a single max fou'd servant