Talk:Palingenesis/@comment-27475362-20170428142359/@comment-30937535-20170428144037

You should only grail servants which are your absolute personal favorites. For 4* servants it can also be enough to grail them to lvl 90, if you just want to make them a little stronger (~1000ATK/HP per 10 lvl).

Grails are the rarest ressource in the game. Never use them out of a passing fancy.