I think the Warlord Chronicles is a great fit for AS&SH. I stumbled into The Winter King in my public library 18 years ago and was immediately hooked. There's a good deal more superstition and black magic in this trilogy than in The Last Kingdom. I love the way Lancelot is revealed to be a cowardly douchebag who paid off poets. 

The magic in the series is subtle but it still plays a central role because the people all BELIEVE it works.  Merlin explains to Derfel in the first book, that HE knows his magic works, but he puts on a show to help the doubters along.

Backed it!

At the rate it's been going, will be fully funded by breakfast tomorrow.

Beastmaster!  OMG can't believe I forgot that movie. I must have watched it a dozen times. Still holding out for Tanya Roberts to be my girlfriend...