[quote=Tatsua Aiisen]
Gilgamesh has three noble phantasms. All of that shit that comes from the Gate of Babylon is part of his GoB, rather than being independent Noble Phantasms (Since it's through the magic of the gate that the noble phantasms are able to exist.)
[/quote]

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]Pike Kantele: A magical kantele that gives him the ability to amplify the power of his voice even more. With it, he can make others bide his will. While he can make masses of normal people do his commands, he can only control from 3 to 1 Servants, due to their vast amount of power, this ability is, however, affected by the rank of magical resistance the Servant has, starting in C (3 at the same time) to A (Only 1). To other Caster servants, he can only control one and this control is rather weak, due to their control on magic. Ranked: A[/quote]

No. Infinite use Command Seals are not acceptable. It gives you basically two characters, and means you can just traded up for the strongest enemy available.