Recently, the community has been putting effort into creating an extensive and complete Wiki for the game on Shoryuken Wikis.
As a result from a collaborative effort from Mitchel and Shadowcat, the Wiki now has two new pages!
One is dedicated to projectiles, where you can learn the priority of each projectile, which moves erase them, the property of them and of moves that can be helpful against them, and much more. Check out the link below:
The second one is dedicated to Support Pokémon, where you can learn what each support is capable of, going from properties like frame advantage all the way to special effects. The link is down below:
You can help spreading the word about those pages by tweeting the tweet below from Mitchel: