Great spell ideas!
Which also prompts a question - if my last hero attacks and kills a fire golem and that attack kills me, assuming they were the last units in play, who wins? Does my first strike give me the victory?
You'll have to try it sometime and find out

I don't think this scenario will ever happen, because summons are unsummoned when the whole team (except the summons) are killed. Of course, this does not account for any Fire Shield effect on the Mage or Guardian themselves, if Ross ever implements a Fire Shield spell card.
Zel