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

[Dragonstrike]

Well, none of Nathan's pokemon are up for trade, really (except Zubat, potentially). If he catches something, it's usually because he intends to use it/give it a good home himself. Starmie for Slowking also wouldn't feel like a completely fair trade from a battle capability standpoint for Nathan since Starmie has access to vastly more powerful attacks overall (Hydro Pump and powered up Psywave later down the line are both rather scary with minimal setup).

It is probably fairly reasonable that Nathan would have an interest in raising a Slowking, and probably even a long term interest at that. King's rocks are just really rare, so most of his interest in trying to get one would have to stem from knowing getting a Slowking is even a reasonable possibility in the first place...