Need help items for level 20 magus

[JuliusCromwell]

I need help picking out items

This is a one shot level 20 game and we are going by wealth by level

I am playing a kensai magus

My weapon is being created by the GM so I do not need to worry about that

But I like to use up most my money since it's a one shot

[avr]

A ring of delayed doom is probably good considering the number of things that can insta-kill you at that level, and a ring of free action. The usual big six excepting your weapon of course. An otherworldly kimono, truesight goggles, and a tome of clear thought should be on your to-get list as well.

[Kurald Galain]

There's a bunch of suggestions in this guide. By level 20 WBL, you can probably buy all of them :)