She's a beast early especially once she hits 6, some major burst. Late game range and IAS skill are just amazing. Only her mid-game is subpar because she doesn't yet have the items and range she gets at 16 to be an unreachable force, but also her early game burst scales down as the enemy gets more resists and hp

Don't forget that after a kill or an assist your rocket jump (w) resets. this is useful as she can jump for a kill and jump back to safety.

After hitting 6 and you are going to all in the other team, W, while in air ult the support away, then E, Q the adc. Obviously depending on the support, etc. you might vary this a little, but this will knock the support out of the fight long enough for you to win

If you have the advantage and they are turret hugging, E, Q the turret and the splash damage does quite a bit of damage, a lot of people don't do this.

If they are pushed, come back to lane through jungle, W behind them and then ult them into tower, then they take tower shots and is easy kill every time.

If they have E on them and they are about to walk away and you know they will have just a little health left, ult them and then the bomb will kill them.

If you e, q they close wait to use your W after the flash/try to get away.

I Hope this Helped!