Nah, you just go back to th'throne of heroes when you die either that way'r in a fight. I mean, I've been summoned loads of times before Fujimaru did, but since th'throne exists outside'a time 'n space it's hard t'remember specifics of the other times.

Fer normal grail wars, there's jus' seven of us bein' summoned fer a fight to the death. Last one standin' gets a wish on th'holy grail.

[In other words, any time he's summoned he's going to likely end up dead one way or another.]