when it's teemo's meta ?

During the teemoing

It never is. He is waiting for a rework. His best time is when ADCs are strong, because he can blind them.

Teemo got a huge indirect nerf when they reworked doran's shield. He can barely do anything anymore against champs he used to destroy like if they last hit sparingly and manage the lane correctly. Once they get a , teemo starts hitting them like wet noodle until they all-in him and Teemo dies.

AP itemization sucking at moment also doesn't do any favors for Teemo. Once AP in general becomes better, Teemo will to.

I would not mind a Termo meta, if his laning phase poke gets nerfed to the profit of his escape, so that we have more counterplay in lane.