i'm new to breeding and have never tested to breed in abilities, but by reading the guide on the main site i think this should be it
(m is for male and f is for female)
Waillord (m) + rhyhorn (f), rhydon (f), mareep (f), flaffy (f), ampharos (f), whishmur (f), loudred (f) or exploud (f) make sure the outcome is a male
the monster you just hatched + snorlax (f)
there might be more ways and/or this might not be correct, as i said i've never done this before