Like shows notes and stats and attacks and what they drop? It'd be a HUGE help! Thanks!

No, I don't believe there is. The closest we have to that is probably

Please make the zapper show a picture of the selec

There is the ability to look at old topics in the forums to see what old challengers were like, although not every challenger has their information archived somewhere. In fact, some challengers seem to have their information regarding them completely erased.