Question: fgo who to reroll for?
Answer: Heracles. Simple to use and hard-hitting, the Greek hero Heracles is a one-size-fits-all brawler. ... 
Carmilla. Carmilla is a powerful single target Assassin. ... 
EMIYA. ... 
Saint Martha. ... 
Elisabeth Bathory. ... 
Chevalier d'Eon. ... 
Tamamo Cat. ... 
Siegfried.