I'm not a 100% certain actually but it'd be nice if it was something that decreases damage or increases speed. I'm not sure! Either way, if Dugtrio uses Beat Up on Terrakion, he's gonna get a whopping 4-6 attack boost in one turn. Follow that up with a Rock Slide from Terrakion and pretty much anything on the opponents side is gone!
If I can get this to work in a Triples match I am going to laugh evilly while Terrakion devestates the opposite team!
See I managed to get my hands on a Terrakion, which is a fighting/ground type from Gen 5 with an ability that makes it get a boost in attack every time it is hit with a dark-type move!
Now, apply that with a Dugtrio who knows the move Beat Up in doubles or triples.
See where I'm going with this?
Boy oh boy oh boy, I'm now going to try and use one of the most dangerous strategies in the game if successfully pulled off! I don't think I'll actually use it when I fight you though, so wanna hear it?