so just to be clear:
If I wanted a Chomp that could sweep and cause massive damage= SD+3 Attacks+LO
If I want a Chomp that lures in Mamoswine and Genesect and can KO them(and this set is more support-ish, opening the path for another sweeper, right?)= SD+3 Attacks+Lowered Def IVs+Yache
And finally if I wanted a Chomp that was meant to clean up late game, exclusively, I'd resort to=SD+Substitute+Leftovers