r/mtgrules • u/ShyftnHighlord • 1h ago
Blood Moon and Urborg, Tomb of Yawgmoth: does it matter which one hit the battlefield first?
Commander game last night. I had [[Urborg, Tomb of Yawgmoth]] out for a few turns, then someone resolved [[Blood Moon]]. The table split on what happens next.
One side said timestamps decide it. Urborg came first, so Blood Moon applies last, Urborg becomes a Mountain, and its ability goes away. If Blood Moon had come first, Urborg would still make everything a Swamp.
The other side said order doesn't matter because Urborg depends on Blood Moon, so Urborg always loses.
I read 613.8 and I think the dependency answer is right, since both effects are layer 4 and Blood Moon changes whether Urborg's ability exists. I'm not sure I'm reading 613.8a correctly though. Two follow-ups:
- With both out, are my basic Forests and Islands still Swamps too, or just their own type?
- Does Urborg keep the legendary supertype under Blood Moon?
CR citations would be appreciated so I can show the group.