i would add heros downfall and more wingmates in a heartbeat if i could get them. same goes for sorin, yeah i agree at the moment, i tend to sideboard garruk almost every game unless i am 100 percent confident that i need him, so ill shift him to Sb for now, in place of something else. this deck is based on my meta and there is so much abzan and mardu decks that dark betrayal is a must. silence the believers is there for stormbreath dragons untill i get heros downfall, or something better when that set falls out. thanks for the comment!

Have you considered sideboarding 1 Athreos, God of Passage? I've found they work well with Siege Rhino.

thanks for the comment @SketchArtist i originally mainboarded 2x Athreos, God of Passage but felt that it was just taking up space as my creatures rarely die, if anything they get exiled which ddoes not fire the ability. i'll add it in again depending on the new set coming out or if my current meta changes a bit.

Exile is why sorin beats whip IMHO. Like flyers? Play test my abzan deck :)

+1 Nice deck! I'm using it as I'm play-testing my Temur Tempo deck, since more Abzan has been showing up in my local meta and your deck is challenging to beat! Still working on strategies/sideboard options for when I come up against Abzan and would appreciate any insight you can provide.