Team is cenetered around SubCM Keldeo but with a slight twist. Instead of the usual pursuit support it's getting support through paralysis, especially on some of its important targets such as Torn or serp.
Recently I've been really into static 3 attack Zapdos. Gets tons of free paralysis on U-turn abusers, mainly torn and lando, while also providing a Gliscor check. Zapdos also has a solid chance to hard cripple excadrill by paralyzing it when it goes to rapid spin. Also nice to get a para every now and then m-lop/mmeta/mega medi.
Clefable further spreads that yellow magic.
M-scizor is utility set w/ defog so zapdos can run static. Don't be scared to let scizor get burnt for the sake of momentum vs. rotom. AV tang w/ HP fire to make ferro less annoying and brick break for screens teams. No need to be too scared of gliscor w/ zapdos and keldeo around. M-scizor gets free u-turns on heatrans, chomps, and zapdos. This allows a free chomp or maybe even a free keldeo in.
I haven't seen SubCM Keldeo in a minute and I personally think it might resurge in this meta where latios is usally choiced and latias is usually complete utility that is hard to pursuit anyways. Scizor is more than enough to handle them (+ gets free U-turn) while Keldeo can always threaten to widdle them away (esp if burn is achieved) long-term without really in need of any help. With the combination of chomp, keldeo, and even burnt scizor U-turns this team should be able to muscle through rotom-w and let either keldeo or chomp wreck havoc.
Try and bring keldeo before rocks are on the field so lefties aren't revealed.
Always sub first but once opponent finds out your set, always secret sword vs. rotom-w/serp since sub is just giving up free hp.
Oh and chomp is dragon rush for some paraflinch hax :)
Flamethrower > Moonblast is an option that can be used to help the team burst through M-Meta & Exca.
Lum berry > Leftovers on chomp to muscle through rotom-w.