Brainstorming with zero cards in hand

[Cavius The Great]

Can you Brainstorm into a Force of Will with zero cards in hand, draw 3 blue cards, one of them being FoW, then counter a spell at instant speed pitching a blue card before putting back the two cards at the top of your library? Any help with this question would be greatly appreciated.

[Jebus]

No.

You can't play spells and abilities while another spell or ability is resolving.

[Gabethebabe]

No.

You can't play spells and abilities while another spell or ability is resolving.

....unless the spell or ability says so

Isochron Scepter

Artifact
Imprint -- When Isochron Scepter comes into play, you may remove an instant card with converted mana cost 2 or less in your hand from the game. (The removed card is imprinted on this artifact.)
, T: You may copy the imprinted instant card and play the copy without paying its mana cost.

[Jebus]

Obvious exceptions exist to nearly every scenario.  It isn't nescessary to have to go through all of them every time someone gives an answer.