Teleport Fix: Teleport cannot be used for first 5 minutes of the game
TP has gotten out of hand in the opinion of many forum-goers as well as professional players. Myself, I have mained toplane since before season 1 and have never enjoyed it when TP is in meta for toplane.
One of the current abuse cases for Teleport is for a top laner to take a jungle camp or two, then use the money to buy lots of potions in conjunction with a doran item and teleport to the lane. Doing this grants an XP/level advantage (despite missing waves of minions in lane) and a huge stat advantage over the other top laner who picks ignite instead for instance.
Not only is this a balance concern but it is also directly counter to the concept of doran items in general, which are meant to sacrifice build paths and sustain (in the case of blade/ring) for early game strength. Teleport cheese at the start of game allows the player to have his cake and eat it too.
The healthy aspect of TP for the game is the ability to strategically react to team needs and make plays. This should not be removed.
But the ability to cheese the start of game with TP has got to go.