Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
So today I played about 3 or 4 games with Soraka and Jax bot lane, and it was funny and awesome. We only lost once. So we thought it would be a good idea to do what every pair of idiots with a stupid idea does, and we made a build to both of them - which is this build you're reading the introduction to right now - so maybe other people could try it too.
This is probably not the thing you should bring into ranked, but it's still something we think you should try out at some point with your friend(s).
The reason we think it works well is because of the constant heal Soraka can give Jax. Plus, if you have a Censer, his attack speed becomes even more stupid.
For unique skills, I'd say that Soraka's w is on such a low cooldown, you can easily go in under tower with no minions as Jax to take out the tower in no time, because your health bar isn't gonna go down in the nearest future. Unless an enemy champion decides to engage you, but that's only if it's either a really fed champ, or if it's more than just one champ.
If you're losing a team fight, you can easily get out because of Soraka's Talisman. As to Soraka only, you can in no time get out, because of your Talisman and Ghost. Plus, if you have a teammate in front of you with under 40% health left, you'll be faster than Barry Allen, and juke the other team with ease.