Limited time servant Scathach (new player)

No,in a few days the part 2 of the event will be release,when you complete part 2 she will become permanent

In part 2 of the summer event, you can get her permanently. Any progress such as level, ascension and skills will carry on to the permanent copy.

Don't forget to farm for and get the 4 ascension material branches or u'll have to wait a year till u can buy them again and ascend her