Armor penetration are raly good but if u dont have u can use ms or flat attack damage :3

Pros
-realy good ganks
-good speed of jungling
-realy mobile champion
-high dmg early game
Cons
-dmg fall off lategame
-hard to master

its the thing if they have a lot of dmg max w 2nd if u need dmg and cc max e 2nd :P

On Low Elo its good to start ur red and go kill their jungler at their red if u are on blue side or if u rly have good mastery on they bluebuff u can try :3 red dot ward placement and yellow way u should go :)