jergal can banish god gale in no time, in the fact, i think jergal is a god closest the God of gods.

and yes, even more, i think the order is from AO, and might be from AO directly, not via helm, because jergal tells tva "destiny always as the one said". i do not thikn the one is helm, the one ought to be AO.

so, tav isn't just the threat eraser, AO even want to know more --"the mortals' value in tav's heart".

in this light, tav in the fact is a very special mortal, if you run the official path(true path), tav is actual the chosen one of AO.

in the other words, baldur's gate 3 is a chess game that sets by AO to know the mortals' value via tav's behavior, and jergal also desires to know.

but, emperor is in a very embarrassing place who manipulates tav and tav's trump card -- prism. i think in AO's view, emperor is a chess game saboteur, isn't the helper.

this is the reason, i prefer the original setting daicy -- the tadpole instead of emperor.