What counts as ground for this ritual, if you have a 5×5 piece of stone/paper/metal/wood under the disk, and that is moved up, say 10 feet, would the disk phase through that stone, or hover 1 foot above it? What about floating over water?
[RPG] What counts as ground for Tenser’s Floating Disk
3d-spacednd-4espells
Best Answer
I don't believe the rules ever formally state what exactly is or is not "ground." With that said, here's what I would use to evaluate this:
Does the item have a large enough surface area to support the disk?
Does the item have a reasonably uniform surface? (i.e. not someone's head and shoulders, not steeply angled, etc.).
How much weight can the item support? It doesn't necessarily have to support the full payload of the disk, but it should be more substantial than (for example) a cloud.
How much is the surface moving? Something that's moving a great deal (like the back of most conscious creatures) is probably not very "ground-like."
At the end of the day, it boils down to a GM call.