Since Ajani requires support in play you cant run him as a four-of
Consuming Aberration, Urborg Lhurgoyf, or even Tarmogoyf are nice
You got the paperwork done on that, right
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Like many other Golgari planeswalkers, Grist, the Hunger Tides entire kit revolves around the graveyard and sacrifice
That's not to say cards like Champion of Wits aren't useful, but it just feels as though there were better options out there, even at the time that could have helped the deck stay closer to a theme and identity