Update (Tarkir: Dragonstorm) :
With the release of Tarkir: Dragonstorm, Zombie Tribal is getting an upgrade!
In: Sidisi, Regent of the Mire , Out: Warren Soultrader
Sidisi, Regent of the Mire by 
and sacrificing a creature we control with mana value X other than Sidisi, let us return target creature card with mana value X plus 1 from our graveyard to the battlefield at sorcery speed. It is a kind of Birthing Pod for graveyard decks and it has no mana cost for activating its ability, so we can get amazing value in decks that play with graveyard strategies, like our Zombie Tribal. A top card for our build.
Warren Soultrader is a great pick for our Zombie Tribal, but at this point, all cuts are amazing cards and we have to look the overall synergy, where Sidisi, Regent of the Mire feels superior as a sacrifice outlet, plus we can spare some ramp to amplify our graveyard recursion strategy.
Now you can buy the upgrade cards with a click of a button!
Updates are live in the featured Zombie Tribal deck.
