[quote=@JohnWolff]
[quote=@Sublimation]
Ah I see, your previous reply indicated that the masters were to be magical girls so I was somewhat confused. So if I was to app a master then I would have no constraints?
[/quote]
Yes. You have the option to create a Master from an original family/bloodline of your own, or from the three Big Families (four if you include Emiya).

[quote=@arowne97]
Ruler class is just there when someone pisses off the Holy Grail by trying to do something that messes with its authority, which Kyubey is doing.
[/quote]
Not that he would be able to do much. :) The Church and Mage's Association couldn't do a thing about that space ferret, you think a 'Ruler' is going to be any different? lol

Besides, Kyubey has Bokurano-tech.
[/quote]

the Ruler class also gets 2 command spells per each other servant in the holy grail war. so I get 14. ^^