So, even if you have a legendary creature that can extort, like Sorin of House Markov, it would be considered life loss caused by a commander outside combat
I could see this deck being a strong shell with the right tuning and card selection, just as long as youre in pods with creature decks
In general, a Sapphire-Steel Deck is always interesting as this Ink colour combination showed a lot of potential recently considering the wide range of great cards that can be combined to create effective strategies
It would be a very on point deck if "Call for Backup" meant tutoring up creatures that keep your creatures alive, but running a ton of tutors wouldn't really fit the "precon-esque" environment, such decks are too consistent and will just overrun (get it) other precon-esque decks
That kind of versatility is gold, especially in Limited, and I'd be happy to pick this up early in a draft