MTG Salvation

Quote from Angelique

For that moment, it would stop at 2 when Garruk resolves. With you being the non-active player, you don't have priority at that time and your opponent (with priority) can activate an ability of Garruk's before you can even sac the Hexmage.

However, if he decided to not use Garruk's ability and went onto the next phase, then you'd be passed priority before moving onto the next phase and that's when you could sac the Hexmage. The situation that you described would be simular to this.

So then after the active player's garruk resolves, the non-active player doesn't get passed priority again until main phase is over or until active player casts another spell, correct?

To continue this question, I just want to clarify my understanding of the stack:

My understanding was that the spell itself went on the stack, is this incorrect?

EG: (hexmage on field)

1. Garruk played, it goes on stack
2. Both players pass priority, spell resolves
3. Active player passes priority, I sac hexmage targetting garruk, pass priority
4. Both players pass priority, hexmage effect resolves

Essentially, does the stack end at step 2, so that there's not a chance to use the stack after the spell resolves? (Unlike an effect/ability, ala countering Demigod so he doesn't return to play)