"Hey there! You may've heard of me. That thing that pops in and out, around, sometimes through the dimensions, looking like anything they desire?"
...
"You haven't? Oh. Er.. well, shit. I was hoping to not have to introduce myself. Well, uh, I'm.. that thing. So.. yeah. What's good ladies, gentlemen and children of all ages, shapes and sizes?"

Going off that awe-inspiring, jaw-dropping, spectacularly-amazingicalious (<- had to add that word into my dictionary) introduction, I'm going to assume you're God or at the very least a concept of him? Well, good to finally meet ya! Hope you enjoy your stay here, but knowing you I'm sure you already know said answer. *Wink, wink*
Welcome to the Guild!

"... Yes! Let's uh.. let's go with that! I am God! Bow before my magnificence!"

*Rolls D20 for Bluff*