This is not really a "new moveset or something" but a revisited spread from one of my friends, thought for the current meta, Ladies and Gentlemens's I'd like to introduce you RJZard!!
Charizard (M) @ Charizardite X
Trait: Blaze
EVs: 96 HP / 220 Atk / 8 SDef / 184 Spd
Jolly Nature (+Spd, -SAtk)
- Dragon Dance
- Flare Blitz
- Roost
- Dragon Claw
Now, as we know scarf landorus-therian saw a rise in usage in this last days, many people use it also as a check to mega charizard x, thanks to stone edge/earthquake, this set aims to beat the crap out of it while still keeping great bulk and good power.
I'll start by saying that the hp evs allows charizardX to have only a 9,8% chance to get 2hked by rotom-wash hydro pumps, and, since hydro pump has half of roost power points you can easily roost of damage against him.
the hp evs (and the extra 8 sdef, in order to make zard hp uneven) also gives charizard the bulk to withstand choice scarf keldeo hydro pump after rocks, since we saw a rise in choice scarf keldeo, I believe this is also another important point.
Moving on, the speed allows you to outspeed jolly 252 scarf landorus therian after a dragon dance and ohko him at +1
220 Atk Tough Claws Mega Charizard X Flare Blitz vs. 4 HP / 0 Def Landorus-T: 280-330 (87.5 - 103.1%) -- guaranteed OHKO after Stealth Rock
The given atk evs also allows charizard to ohko 100% of the time choice specs/scarf keldeo at +1, if he entered the field two times with stealth rocks on it.
Not only that, with this ev spread charizard can 2hko azumarill with a +1 flare blitz, and cannot be 2hked by a combination of play rough+aqua jet.
A great teammate for it can be Rocky Helmet Ferrothorn, I'll get to why this "unusual" item later (especially now that magnezone is on the loose).
Ferrothorn covers charizard's weakness like rock and dragon, while charizard can find an easier set up opportunity on fire moves directed at ferrothorn, or fight too if he still didn't megaevolved, ferro can also set up stealth rocks for zard, which are necessary for it.
Rocky Helmet is pretty much required because a combination of rocky helmet+ iron barbs+stealth rocks brings 252 hp azumarill to +1 flare blitz ohko range, at that point ferrothorn job is pretty much over, and can also be wasted to hp fire magnezone in order to give charizard an easy set up.
Keldeo is another great partner, especially paired with sandstorm up, since it can give the illusion that you are using mega zard y, and not x, while keldeo can weaken azumarill in order to bring it to flare blitz ohko range, excadrill has the fastest rapid spin in the game and can also help keeping up pressure.
Another partner is memento+defog latios, he can clear the field for you and with memento gives charizard an easy set up opportunity, latias falls along the same boat, but has healing wish, in order to easily recover charizard's hp.
Volturn from landorus-therian (who can also set up rocks), raikou (which is also an okay-ish birdspam check and also has no problem switching on thundurus' thunder wave if it gets down to it with charizard) rotom-wash allows charizard an easier entry, and as such if timed right an easier set up.
Earthquake is another acceptable move, if you have with you another sweeper troubled by scarfheatran's presence, majority of bulky zard also do not have enough speed to surpass him, so it's also an unexpected threat for them.
Have fun.