I'm not serious but that set gets pretty decent coverage.if you are serious im going to stop IV breeding so once the new sets are established onto their pokemon ill re-breed.
gyarados with no hp/def takes 85% minimum from LO +0 crunch (so after 1 dd and intimidate) while max hp/def impish gyara takes 49~58 from crunch.
not exactly a stellar counter but a defensive gyara could help as long as oyu keep the rocks off
skarm beats it pretty soundly though. thunderpunch is always an option though xDD