Jungle role is still busted and is a large factor in why games are a 1-sided stomp
Literally the solo carry role in the game with the influence of 3 supports, 1 support for each lane. The problem is that junglers don't fall behind at all for ganking nonstop, even if none of those ganks immediately net a kill.
Most people would probably climb by playing jungle even if they have never played the role before.