Devourer balanced item Kappa

i just faced a devourer vayne in my last game.

we invaded at lvl 1. i repeatedly took her jungle and ganked her at red buff and took it whenever i had the chance. off those kills and buffs i destroyed my lane opponent and then switched between counterjunbgling, killing my opponent and roaming mid. by 20 minutes, i was able to 1v2 without burning summoners. she made it to lvl 10 with 6 stacks when the game ended.

not gonna let that bitch finish that item, lol. what im saying is, counterjungling is the key. have people other than nunu mains even realized that poachers knife is an item in this game?