collect keeps as much as you can while still helping out your bot lane. Once you hit level 6 try to have an Ohmwrecker by then or around there. Now then tell your mid and jung to wait for you to current dive enemy mid. First you will ult the enemy mid tower, then start the tower dive. Once let wears off use the ohmwrecker active.

Repeat for any lane you want your team to tower dive.

Later in the game you should have a Zhonya's Hourglass.The hourglass is there for you to let yourself when low on health. This is a bait tactic; let the enemy chase you, ult yourself ( and if you can, some enemy as well) then Zhonya's. this should provide enough time for your team to reposition and take out the enemy.