I probably have plenty of rare in-game items, but that’s super boring, so let’s talk about physical stuff! The rarest thing I probably own is the Dark Souls II steelbook. It’s pretty neat. My Tapu Lele plush was $50 (I got it as a gift!), so I don’t imagine many people outside of collectors have one of those. Edit: I’m dumb; I forgot to mention I have an Emrakul, The Aeons Torn Magic card. Those are pretty rare!