While it could use some protection (enter Temple Altisaur), being able to discover X once per turn based on the toughness of a Dino entering the battlefield is a huge play, and one that can snowball into an easy victory if your deck is stacked the right way
As an added bonus for this attack, mill, play a land sequence, whenever one or more cards leave your graveyard, youre able to spawn a 2/2 black Zombie Druid creature token
In fact, theyre arguably the best choice for a Commander deck themed around The Ring
Many of its cards allow you to buff your characters, so they can "swing up" and make favorable trades with your opponent's more expensive cards
If you're casting a foretold card from exile for its foretell cost, you can't choose to cast it for any other alternative costs
This land has become a staple in Standard and beyond, so we highly recommend having four in your collection