Felix is excessively bad at projectiles. By which I mean that, unless he's using his earth powers to propel rocks (in which case he's quite likely to hit dead-on), he can occasionally hit the broad side of a barn... if he's standing inside the barn in question.

Fluttershy shouted down a dragon once. I admit, there are a few others in Milliways who know about that, but that's because they were there.