What are the best magical systems in GURPS?

[ericthered]

Originally Posted by AlexanderHowl

It is easy enough for systems like RPM. A practitioner in RPM could have IQ 12 [40], Magery 6 [65], Modular Abilities 24 (Amulet of Knowedge; Slotted Cosmic Powers; Magical, -10%; Protected Amulet, -35%; Trait-Limited, Magical Paths, -30%) [32], Modular Abilities (Ring of Mastery; Cosmic Powers; Magical, -10%; Protected Amulet, -35%; Trait-Limited, Ritual Mastery, -50%) [2], and Thaumotology (VH) IQ+6 [32]-18. For 171 CP, you could have a quite effective NPC.

He's asking for the charm loadout of this NPC when you fight him. What does he have?