When players get knocked out, they can have multiple Raises cast on them. For example, maybe the WHM instantly Swiftcast Raise on the BRD who just died. BRD doesn't accept, so a little while later the SCH casts Swiftcast Raise on the BRD as well. SMN gets the same idea at the same time, so both cast Raise within a couple seconds of each other. This BRD now has 3 Raises cast on them, even though really only the first one has "taken effect".

It would be nice if someone already had a Raise on them, that they have not yet accepted, that it wasn't possible to cast Raise on them anymore until the previous one wore off. It's an incredible waste of MP, especially for a SMN, whose MP management becomes perilous after more than a Raise or two.

At the very least, a very obvious cue that they already have Raise on them would be nice. I mean, I already blew my Swiftcast. I have to throw away a huge gob of MP, too?