Land
Spawning Pool enters tapped.
![](/symbols/T.svg)
: Add
![](/symbols/B.svg)
.
![](/symbols/1.svg)
![](/symbols/B.svg)
: Spawning Pool becomes a 1/1 black Skeleton creature with "
![](/symbols/B.svg)
: Regenerate this creature" until end of turn. It's still a land. (If it regenerates, the next time it would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)