>>32398770I did a HG run recently and used all Johto mons I hadn't used before. It was a lot of fun and I made some new bros I didn't think I'd like. Take photos throughout your journey with Cameron the Photographer: it's awesome to look back on them. On that note, try collecting accessories and backdrops by talking to your Pokemon and dress them up periodically. Collect Apricorns daily because the balls are pretty and useful. Do the Pokeathlon often to get useful items and evolution stones, and rematch trainers when you can because they're useful for grinding for Red in the postgame.
>>32399875I think the Sunflora set I used was Solar Power ability w/ Sunny Day, Solar Beam, Synthesis and Leaf Storm. If you can get into a good swing against mons that are weak/neutral to grass, it can actually be quite useful.