ok i just ducked im mostly spiritil guid then out of nowhere i got launched but i dont have the rocket science skill (no screenshots sorry)

was it a double sham map

Are you on dual sham?
Your other sham might have Rocket. Since Dual Sham stack skills this is why you get most of the skills of the other shaman.

no it was just me as sham?

hmm might be because something popped up under you

Where their any special effects that came with it? Where there* clouds?

no im just room with friends then i duck room i flew