My first Ho-Oh!
Poor Golem and Raikou did not even get to use their charge moves because Solar Beam instantly knocked them out; I thought Electric was not weak to Grass? Vaporeon survived a little longer, then it was up to Gyarados and Dragonite to get the job done. With only eight balls, I used a Golden Razz and my first throw was a Great, which somehow managed to get it! CP 2179 and it was a wonder with ES/Solar! Ran it through the IV calculator and got 11A/13D/15S.
Answers
Congratulations.
And, yeah, Solar Beam is a freakin' nightmare. The first time I faced it, I had 11(!) Pokemon faint before we beat it. It wasn't a large group though, but still.
Didn't even manage to catch it.
But I got a couple later that day and three more yesterday.
Took awhile to learn how to throw the ball, but now I'm doing better.