Outside of landfall and green, what makes Field of the Dead good?

I bought Field of the Dead thinking it would be good for my Orzhov and mono Black token zombie decks, but I found out the hard way this card isn't very viable. Test your decks before you buy the cards. I might keep it if I make a different zombie deck or I may end up selling it because, outside of landfall/land sacrifice, I'm not seeing much of a reason for this card to be a game changer.

On a side note, I've never noticed the zombies in the artwork before. You learn something new every day.