Update (Outlaws of Thunder Junction) :
With the release of Outlaws of Thunder Junction, Wurm Tribal is getting an upgrade!
In: Colossal Rattlewurm , Out: Argothian Wurm
In: Scavenger Grounds , Out: Forest (bonus upgrade for utility and synergy)
Colossal Rattlewurm is a great inclusion for our Wurm Tribal. Great stats for its mana cost, Trample and Flash as long as we control a Desert. Moreover, if we exile it from our graveyard and pay 
it can become a Desert tutor, something that can be very useful since we can tutor Scavenger Grounds for some extra graveyard hate.
Argothian Wurm gets cut because Colossal Rattlewurm is almost a strict upgrade with extra utility and without any downside.
Scavenger Grounds is a staple for graveyard hate and it has extra synergy with our Wurm Tribal since it can be fetched by Colossal Rattlewurm or it can give it Flash if it is already on the battlefield.
Now you can buy the upgrade cards with a click of a button!
Updates are live in the featured Wurm Tribal deck.
