Mid laners, want to win more games?
Buy
.
How many times have you roamed only for the enemies to just walk away when you get close? By the time you get back to your lane you've probably lost some minions and experience and you accomplished nothing by attempting to roam.
How many times have you hidden in a bush only to find it was warded and get deleted by the enemy Vayne? How awesome it would be to know whether or not you're actually safe?
Seriously. Get Oracle of Alteration and buy pinks when you can instead of keeping the standard yellow trinket. You'll be much more useful to the team later as the game goes on, and most importantly, you can roam freely without fear of being revealed.
or
benefit from using
more than the others as well
and moving towards pinks wards and something else.