u need to be fast and to attack ur target and rape them as fast as possible, dorian has insane damage but is the easiest hero on the planet to kite forever so make sure u get ghostblade and boost of swiftness to attack ur enemy fast - ur main weakness after ur first item (ghostvblade) is u are now made of paper, this means u need jak'sho immediately. If u manage to survive the early game at this point u can get warmogs and become badass. After ur badass power has been unlocked it's time to rape and pillage the opposing jungle and confiscate their gold. If u have 3 of ur main items all objective-based largeBastards u need to kill (dragon, crabs, baron etc) will be urs (unless u suck balls aqt the game or ur team happens to be weird)

when u get all 4 dragons and baron, finishing the game should be a simple matter
remember: if u get 5 stacks of the thing he has u get to kill everyone on the enemy team!!