The problem with this card is that Gwen doesn't want to go home at all. She can stay in hero form for the entire game unless you have to search for Cpt Stacey or she is forced to go home somehow. I would run this on Miles, but not Gwen I think.

What's better than blocking with a two-cost ally? Blocking twice with the same two-cost ally! Throg can do it. Ideally you'd like to run Puddlegulp in a deck with The Bifrost to ensure you get that tough status card, but as with all two-cost allies, he's still quite good even when you can't get that benefit.

With the release of Standard 2 and Expert 2, I feel that this is a card that most decks should be considering as a 1x or even a 2x. Many of the new boost abilities lead to additional boost cards being drawn and things can spiral out of control. This is capable of stopping the problems before they start.

Lightning Strike might be the worst card in Thor's deck. It's horrifyingly inefficient if you aren't engaged with any minions (less than one damage per card/resource, ew), and not especially efficient with one engaged minion (if you can manage to pay 4, it's 8 damage for 5+card, which still isn't very good). It only starts becoming efficient if you can wrangle two or more minions: with two minions and 3, you get 9 damage for 4+card, which is respectable. But how often do you get two minions engaged with Thor? Probably not often, even with Defender of the Nine Realms, Get Over Here!, and Angela fetching more. Probably best in Aggression, where you can try to set up a The Bifrost -> Angela play on a turn when you happen to have another minion already. Or in Protection, where you could plausibly tank a small minion for a turn or two until you line up a Lightning Strike and an additional minion.

One upside is that this is not an attack, so you can still deploy it when you're Stunned or otherwise incapacitated. And some scenarios will throw extra minions at you more frequently, which will simplify the process of getting value out of Lightning Strike.

Thor can be pretty strong once he's set up, but with a base 5/4 hand size, it can take a while to even find your cards. For Asgard! transforms itself into another one of your key pieces for a mere one resource, helping you set up that little bit faster. Look to grab Asgard, God of Thunder, or The Bifrost, probably in that order.

It also recurs cards out of your discard pile, so if you lost one of those key cards to a Treachery, or you just want another go with Throg, it's good for that, too.