Tip
Dr. Mundo lacks ganking abilities and is a slow jungler. However, his Infected Cleaver (Q) can deal a lot of damage. Focus ealy game on ganking, and on hitting him with CC skills to stop him during late game.
Nunu & Willump vs Dr. Mundo

Dr. Mundo lacks ganking abilities and is a slow jungler. However, his Infected Cleaver (Q) can deal a lot of damage. Focus ealy game on ganking, and on hitting him with CC skills to stop him during late game.