Ignition
We are so back Zygardebros
It was an Egg Move before it was a TR.It's not an egg move. It's a TR from the new games, so i can basically see Ash teaching him the move. Maybe Lucario will get interested in Cinderace's Pyro Ball, wanting to imitate and starts learning blaze kick instead. Riolu might see Cinderace as an example to follow. Riolu hatches Episode 21, Cinderace probably (would be extremely surprised if the didnt) debuts episode 22.
If Go got a Hoenn starter, i would prefer him to showcase the mudkip line. Not that i see him showcasing much since he doesnt do much with the pokemon he captures.