keldeo+latios hits alot of things in the stabmons meta but what came to mind at first was scarf keldeo since it can outspeed threats such as thundurus/serperior/weavile and check kyurem-b along with physical latios, dragon dance with zen headbutt + dragon stab is great, also i added ice beam which lures in lando-i after one dd since i believe most teams with lando-i would switch-in on this monster, having saying that i needed a great answer to spore spam/steels in general since latios prefers to have steels/fairies taken out so thats where magnezone comes in, i actually stole this fantastic set from
Eevee General :). i made sure its bulky enough to withstand all of serperior attacks even at +4 and fast enough to outspeed most scizors which prove to be a problem for the team otherwise. i needed a fire check not named keldeo but its also one of the most popular fire checks there is in stabmons at it fixes your heatran/char-y problem and still functions as a amazing scald switch in for the team,not to mention power gem as a great add imo as it can one shot char-y and dish out a decent amount of damage to kyu-b. A next mon that came to mind was helmet garchomp it does so well verse those fakespeed abusers so well along with pressuring my opponent with hazards 24/7, i made garchomp fast enough to outspeed not only bulky lando but all base 70s sadly he's one of my ground switchins :[.
Then there's doge!, i found that i was really weak to thundurus since latios is my switchin and had no way to get around to it and at the same time i couldn't decide what i could use for my hazard removal ;-; so i used rapid spin stoutland to do that very task for me because with the lack of knock off his ability to damage ghost comes in handy