I want to use the Alien Origins regional trait, the Pathfinder Focus magic trait, and the Sacred Orienteer religion trait on the same character. You start play with a unique compass that doesn’t point north and is riddled with indecipherable alien markings, any compass or wayfinder in your possession also functions as a holy symbol of Elion, and finally you can select a magnetic compass for your arcane bond class feature.
The idea is you have this weird compass that is both your Arcane Bond and Holy Symbol... not that this is especially useful, but I like the flavor. Ecclesitheurge gets a Bonded Holy Symbol that functions exactly as a Wizard's Arcane Bond. False Priest could get an Arcane Bond from the Arcane Bloodline. Chaotic Good or Chaotic Neutral alignment, and Wyrwood for race. I have several Wyrwood, most of which are Lawful Evil, all very obsessed with ioun stones... this one is going to be directly opposed to the others.
I'd go with the Ecclesitheurge as the False Priest is specifically tied into a specific country if you are playing within the Golarion setting (specifically Razmiran Priest), which will cause some ... conflicts with your choice of traits. Not insurmountable, but messy.