shut Q on your enemy use R then Q again to not lost your kill use E to give damage and E again to slow, wen they flash you shot you Q after them ore using flash after the enemy, you just use you W to give you shield ore quik escape.

COMBO
use Q then R so Q to dash to the enemy so use E and give you self shield then slow whit E and pick up the kill. ( the combo is only made to NORMAL BUILD ore OFFENSIV BUILD )

ESCAPE
to escape its easy whit lee sin only use flash, W to a minions far away ore something els, you can shot you Q over a wall and hit the jungle monsters then just using Q again to dash over the wall.you can use R to wen you are going to help some one ore you self are going to die just use R then they being dash alot of feet back.