Double Exhaust in the botlane?
Recently thought about it and I think it could be worth it. If you have enough coordination to time it correctly, you will be able to slow the enemy carry's movement speed and attack speed by 30% aswell as reducing their damage by 40% and their resistances by 10 for 5 whole seconds.
You might say that this is unthinkable and that heal is absolutely mandatory for the botlane, but now 
and 
run exhaust even though Teleport was considered a mandatory summoner spell for the toplane.
