Since youre bringing TP, Make sure your eyes are glued to the map. Watch for moments you can TP and get another lane ahead. Call MIAS and make sure you communicate well. With this riven build, you can be more towards the front, and POSSIBLY engage the enemy team. If you wish to flash engage, ER Flash W and make sure you hit as many people as possible. Try and chain CC with your team and it should be GG. Any moment you can take a turret, you should. with the triforce, you will be able to take turrets REALLY fast.
Pros / Cons
Tons of Damage
Insane split push potential
build path is a bit expensive
have to play a bit safer until you get items.