SPOINK! NOT A GRUMPYPIG! Sort out the last section out (^.^;
And my luck would have ancient power boost. I can feel the pain already. owowowow.
Anyway, let us try to sort things out.

Use Psychic to hold Fe in midair above the stream there. Shake it around a bit, as nausea is always good.
Follow up with an Iron tail, use it on Fe's head.
Finish up using bounce on Fe's shield to get a fair distance away, and release Psychic to let Fe fall into the water, boosted to the water by bounce.

Psychic (Hold in midair above stream, shake it up) ~ Iron tail (Psychic Held) ~ Bounce away (Release psychic to drop shieldon into water, boost the speed of impact with the same bounce)

(Hope i'm not too Specific here)