Spawning Pool enters the battlefield tapped. {T}: Add {B}. {1}{B}: Spawning Pool becomes a 1/1 black Skeleton creature with "{B}: Regenerate this creature" until end of turn. It's still a land. (If it regenerates, the next time it would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)
![Spawning Pool [Tenth Edition] | Grognard Games](http://grognardgames.com/cdn/shop/products/958ce2ba-a489-5aad-a0c1-0a2e77ab24f4_d76f44ca-1687-4db4-9abc-9a243996881b.jpg?v=1654184953)
