These cards alone could make a powerful deck, especially when combined with existing Goblin cards in Magic: The Gathering
This deck makes use out of smaller eldrazi like Oblivion Sower, and Endbringer
Opponent Declares Defense : After you announce your attack, your rival chooses the defense, indicating which defending creature is blocking which attacking creature
Because this is a new instance of Tidehollow Sculler, it triggers again, and you steal a card
The best Commander decks are synergistic with their commander but not completely dependent on it
Looking at this, I thought a lot about the most recent set excluding Final Fantasy, Tarkir Dragonstorm, and how this card fits in so well with those recently released decks and strategies