1. Liandrys (bc of the shrooms(+slow)they will deal double dmg so instead 2% it will deal 4%)
2. Ludens (your shrooms proc it aswell and the movementspeed is great aswell)
3. Lich Bane (Q and AA and you already deal tons of damage)
4. Rabadon
5. Zhonyas or Void staff
take void if they got much MR if not than take Zhonyas.
I would take the CDR boots bc you need to place much shrooms and your Q deals heavy dmg and the 15 mr pen is not really that much for teemo
2. Ludens (your shrooms proc it aswell and the movementspeed is great aswell)
3. Lich Bane (Q and AA and you already deal tons of damage)
4. Rabadon
5. Zhonyas or Void staff
take void if they got much MR if not than take Zhonyas.
I would take the CDR boots bc you need to place much shrooms and your Q deals heavy dmg and the 15 mr pen is not really that much for teemo