Powerstorm Question

If I met the elemental Threshold on Powerstorm, I'm assuming I get both the top half of the card AND the bottom half, correct? Given that - the target spirit gains 3 energy, THEN gets to repeat a power card by paying its cost, THEN gets to repeat up to 3 different power cards by paying their costs? So could I go:

Powerstorm (with Threshold):

-Gain 3 energy

-Duplicate Gift of Proliferation (paying 1)

-Duplicate Gift of Proliferation again (paying 1) and two other powers

or am I reading this wrong?

In general, yeah, but any individual power card can only be repeated once. 

Welcome! If you haven’t already, please check out the Spirit Island FAQ.
Here are all the FAQ answers about Powerstorm, and this question (as Rabit answered above) is answered here.