That team is really amazing and works well for me, even though it might seem like a weird combination of Pokemon. I always lead with Raikou and Typhlosion. (The big problem with that is if the other trainer has a ground type, but when that happens I leave Raikou in to use HP Ice and swap Typhlosion for Krookodile to Intimidate the ground type which usually guarantees Raikou survives at least one hit.)
This just reminded me that I still need to finish the Ultra Sun story. I haven't assembled a team yet but I'm probably going to have a chandelure. Maybe a serperior as well but I still don't know yet.