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 and it has no mana cost for activating its ability, so we can get amazing value from it. A great card for our Snakes and Gorgons Tribal.
Bow of Nylea gets cut because although it is flexible and has synergy with our deathtouch strategy, its modal options have somewhat low impact for our build. We desperetely needed a good graveyard recursion option, where Sidisi, Regent of the Mire is far superior.
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