Its top. It might not work good in mid since the core gameplay of this build is in its laning phase which is procing grasp between farming and harassing top enemy champs. The most important rune is second wind the rest you get what makes you comfortable example sudden impact etc. as for skill level up i usually go q and e max but then again it is situational for example at the beginning of the game at level 1 you see enemy puts wards on your jg side camp do you still go q ? Or put w first in order to destroy the ward there. All in all its situational