Ezreal & Teemo Synergy
Ezreal ADC and Teemo Support win 49.4% of 1,483 Low Elo games together, +1.4 points vs expected, 2-patch window 26.19-26.20.
Researched on LoL patch 26.20. Tips are written to hold at any rank; stats come from Low Elo ranked games up to patch 26.20.
Why this duo works
Noxious Trap(R) can slow an enemy before Ezreal fires Trueshot Barrage(R), making the long-range follow-up easier to land. Ezreal can also farm more safely than many marksmen while Teemo leaves lane to roam, giving Teemo room to create pressure elsewhere.
Playing the duo
Noxious Trap(R) slows enemies in its cloud, while Trueshot Barrage(R) travels in a long line and can follow up from far away.
How to play as Ezreal
Wait for a Noxious Trap(R) slow before sending Trueshot Barrage(R) through the target; the slowed movement makes the long-range line easier to connect.
How to play as Teemo
When Ezreal has Trueshot Barrage(R) available, place or bounce a Noxious Trap(R) where an enemy is likely to cross so its slow can set up his shot.
Ezreal can manage a solo lane more safely than many marksmen, but roam after the wave is in a safe state so he is not forced to fight a two-versus-one while it pushes toward him.
Sources
These notes come from r/TeemoTalk and r/supportlol, checked against the champions' abilities.