[quote=@Rin]
Pairing up Masters and Servants at random doesn't really make sense in [i]any[/i] grail war, honestly, since either catalysts are used or someone is summoned who best matches their Master.
[/quote]

True, but I meant it less as in "it's random for the characters" as much as "it's random for the players." I assumed they'd be paired up and then the IC explanation would be that it wasn't random at all.