Rayquaza for Machamp

it should be rated as 4th best I think. it has low defenses and aerial ace isn't that strong. ive used it as a lead then followed by alakazams, alakazam just does more damage honesly.

ttw at lv40
for double dragon Ray 148
for double fly Ray 130
for espeon 125-127

ttw at lv35
dd ray 157
ff ray 135
esp 135-136

tbh, double flying Rayquaza is not pretty fly, better go double dragon, at least that's what I'm doing.

For grass and bug Moltres is doing pretty hot.
For fighting types Rayquaza doesn't outperform easy to obtain eeveelution

Yes, good TDO in simulations.

https://www.pokebattler.com/raids

Yeah, it is one of the top counters against Machamp.

The Machamp raid solo guide lists Rayquaza.

Not the best but i was able to solo a machamp with my level 40 Ray, take me 2 turns but its pretty good.