Hussar
Legend
On the note of cool stuff in the MM, how about the ghost's Horrifying Visage ability? It can permanently age you by 10 to 40 years.
I don't have the MM yet, so, how do they deal with ageing? it was such a PITA in 1e, that it meant that I never used Ghosts. One failed save (actually, IIRC, in AD&D you didn't even get a save) and you just lost your character with pretty much no way of getting it back.