Black/White Tokens help

Decklist here: http://deckbox.org/sets/147998

I've been working on this for a bit. The general idea is to use mortarpod as a sac outlet to trigger high priest, and either shoot demon tokens out of the pods, or beat down using tokens generated by bloodline keeper, sorin, etc. Looking for tips on streamlining what I've got. I think I want to replace geist-honored monk with something more apropos for the 5/6 drop slot, but I'm not sure what. Sun Titan, Elspeth Tirel? Something else?

Thanks in advance. :)