Here you go:Where did you find a DSTWO?!
I'd like to get one, but they're pretty hard to come by. I keep waiting for a DSTWO+ to appear, but I've decided that it's never going to.
https://www.usahotstuff.com/13-supercard-dstwo-for-3ds3ds-xl-dsidsixl-ndsl.html
When I ordered they were showing 18 in stock, but strangely they are now showing over 100. I have no idea where they are getting them or if they are genuine, or if I'll even get it. I'll report back, and if I do get it I'm tempted to order more as spares.