[Meta thread] Iron's PokeRole Adventure: The Skull Ruins

[Dragonstrike]

But what if I give the order to Phantump carry the Potion and give in Nathan hands? Or even give to Kirlia hands?

Well, Kirlia wouldn't be able to use it, but he could hold on to it until someone used it.  Nathan's scouting ahead right now, so feel free to interact with Kirlia in whatever way ya like.