Quite a few
but about all the dreams I have that are about pokemon I usually am a Pokemon in them
I seem to be these ones rather frequently
Yveltal, Articuno, Dialga, Lugia, Umbreon, Ninetales, Reshiram, Latias, Lycanroc, Rayquaza.
For the most part Yveltal and 90% of the time someone ends up dead then again Yveltal is the pokemon of destruction.
A few interesting ones I did have not posting all of them but here are some
One of the ones I was Yveltal I did destroy an entire planet mostly due to being consumed by the planets negative energy Xerneas made no effort into stopping me and said the planet would be reborn.
And another I was Yveltal well prior before becoming Yveltal I was at my Grandpa's House and my Grandpa somehow knew Donald Trump, who somehow found out my original form was a dragon and that I was princess of the dark crystal kingdom so I became Yveltal in that one and threatened to destroy the United states if he said anything.
And one of the dreams I have I was Articuno I was travelling with Espeon to someplace and Moltres shows up and had Espeon surrounded by a bunch of Pokemon like Houndoom, Dialga and Rayquaza and threatened to kill Espeon if I refused to to do what Moltres Wanted
And I pretty much did whatever Moltres wanted and Moltres seemed to have known about this reality as well and known I was human in it but as far as he was concerned my original form is a dragon. And Moltres made an attempt to try and Syncronize each reality I've been in and destroy them just to keep me in that one It also turned out that Espeon and Moltres were one and the same and Espeon was an illusion the entire time. So I held a pretty long grudge against Moltres ever since that probably would be best if I did say what Moltres wanted either.
and a dream I had I was Dialga in Azelf was using Celebi to create time disortions so I would become Primal Dialga and would open a portal to this reality and cross over from my dream into this reality and enslave the human race and if I did cross over with Azelf I would likely be under Azelf's Control along with Celebi since I would be Primal Dialga and would likely forget everything and only remember being Dialga. But if that did happen this planet would probably be doomed since I doubt current technology could stop Dialga.
Don't know how Scientist would be able to explain that one if Azelf managed to succeed into crossing from my dream into this reality along with Dialga and Celebi at hand.
Kind of somewhat off topic but I also had a couple of different dreams I was a dragon in and two different dragons tried to cross over from my dreams into this reality as well one dragon was going to destroy the world and the other was going to make me destroy it instead.
One of the dragons was Malefore from Spyro and the other dragon was a different dragon says we supposedly were from the same world that very same planet the donald trump that was in my dreams thought I was from as well.
Another dream that Donald Showed up prior to the one I became Yveltal in I did end up as Umbreon and killed him I'm guessing he must've told everyone who I was.
And another fairly interesting one that I was Noivern in I was flying around in some caves and can see soundwaves or echoes at long ranges was pretty neat having a different type of site like that.
Don't know if I should be concerned or not on becoming Yveltal quite often