Ubermuk
Sticky & Sweet
They had Ash mention two continuity points in that he knew a Piplup that acted like the one that appeared in an XY episode and then he mentions to Goodra, how he could have used his reserves in the league, but decided he wanted to use it instead. But yeah, I was not happy with not having any sort of continuity which is why I like SM since besides seeing Bulbasaur and Tauros, we got to see Muk, Corphish, and Totodile again.
I'm not trying to rain on anyone's parade but it makes me laugh that for some people seeing a couple of Ash's old Pokemon for a few seconds in SuMo was considered good continuity. It sucks that we have to settle for less even in SuMo...