Cool deck! Teneb doesn't get enough love. Have you considered giving the dragon doublestrike e.g. through Fireshrieker, Duelist's Heritage or True Conviction so you can activate his ability twice? Life's Finale, Crux of Fate, and Mindcrank might pique your interest too.

Thank you onehitterquiter! I didn't think of that, that's a great idea. I have a True Conviction, so I'll probably stick that in there. To be honest, when I first built this deck a couple days ago I didn't realize at first that Teneb says put a card from "a" graveyard, not "your" graveyard, which makes her all the better! With that in mind, I'm really digging Life's Finale and Mindcrank, so hopefully I can find a slot for those.