As teemo, Remember to not fight when you have been afflicted by his t. You won't be able to do a lot of damage, and will take exponentially more damage.

A well timed W can neutralize his t. Use this to your advantage.

Your Ultimate will play a significant role when it comes to winning this matchup. Make sure that you target him out first during team fights.

Keep the wave close to your tower. The enemy has no sort of sieging potential and can be easily exposed to ganks. As teemo, Do not forget not to fight when you have been afflicted by its t. You will not be able to do much damage, and will take exponentially more damage. A well-timed W can neutralize its t. Use this to your advantage. Your Ultimate will play an important role when it comes to winning this matchup. Make sure you target it first during team fighting. Keep the wave near your turn. The enemy does not have some sort of sieving potential and can easily be exposed to the ganks.