[quote=@TwilightDragon]
Noble Phantasm mount would be cool. But that means I would have to get rid of either Pinning Shot or Scourge. :c


[/quote]

Not necessarily. Quite a few servants have three phantasms. A few have four I believe. In cannon I mean.

[quote=@TwilightDragon]
There aren't, but I believe if the Master dies, the Servant can be transferred over to someone else, which means that those without Servants can have the potential of having one in the future.
[/quote]

There can be more masters than servants if the grail so chooses. Servants tend to be the definitive number.