[quote=Raineh Daze]
Nope, the Gate is simply a portal to his treasury. It's why he could leave stuff behind after shooting Caster in Fate/Zero--it's no more dependent on the Gate than his hairstyle is.
[/quote]

The Gate is a portal to his treasury. The contents of his treasury are not his noble phantasms, they are simple magic items that happen to be on the level of noble phantasms.