All I see on teemo is a nerf, as teemo main teemo struggle alot with team contribution.
Nerfing his mushroom damage is literally a death sentence to teemo, giving him more consistent poking while nerfing his overall sustain dps is not a good option on teemo.
-What teemo needs is mobility against champion with dashes, -More sustained late game damage, -More contribution to the team outside his shrooms. -More sustained damage against heavy sustain champions. -Increase auto attack ranges past laning phase.