Nah it's nothing that complicated. Just going to look through the people in this thread, have a bit of discussion about it between officials and admins, and choose who we think would work best. There's no need to have people host servers or anything fancy like that, since it basically comes down to location and internet speed. In terms of lag, there's not a huge difference between having 10 players, 15 players, or even 31. If your server can give a decent ping to people dueling, it can handle a full event.

And besides that, even hosts with a good internet speed will be laggy for some people, due to location. For example, I get about 200 ms on fast servers if they are in europe. This is because I live in vancouver (thats like 8000 km away and 9 or 10 time zones, not to mention an entire ocean). Likewise, my server can be pretty bad for most players, even though my internet connection is pretty good.