Zardnaar
Legend
You contend then, that the words under "Grappled (Condition)" don't amount to rules? Or just particular of them?
Acknowledged. I presupposed that seeing as being carried would surely force the bearer to enter squares they wanted to inflict damage on you (and further presupposing that you want to contend that spikes deal damage to creatures carried over them) it seemed besides the point.
I agree that another route to achieving what you want is to say that Grappler feat is a case of specific beats general. But then I don't see why one can't say that the Carrying Objects rule when DM chooses to apply it to a specific case, is not even more specific. The answer may depend on whether you think carrying capacity is used by default? To my reading, it's not used by default due to words like "unusually" and "might".
Let's take the case where a DM says that carrying capacity is always in force. In that case, I agree with you, Grappler is more specific. That being so, my examples up-thread show how I believe that goes.
I can't find any rules around dragged. And it's not just spike growth you can do it with emanations.