Guide is made by me. Plat 5, 60 something % w/r. This may not work for you, worked for me 10 games in a row.

DHarv gives you better scaling, theres no denying. This will punish if you do fall behind. If ahead, there is no chance that you will lose, it will be near impossible as long as you focus most fed.

Zombie Ward is abusive and the best of the three choices. Works wiht Dusk and your passive.

Hunter gives you chase combined with R-Evo which is near unmatched.

Triumph helps you during 1v5 situations, get in get out R2.

Stalker over Skirmisher is a personal preference.
Skirmisher takes too much time for it to work personally, my playstyle revolves around Stalkers.

Cleaver is uneeded unless you fall behind
If ahead, Trinity is an option.

Edge of Night is worthless and not gold efficent for its cost.

Start Red -> Wolves -> Blue invade enemy jg.

If buff is there, wait and ward over walls. Smite buff, kill jungle. Look at enemy top for sandwhich attempts.

+Brutal AD Jungle
+High Damgage
+High Mobility
+Sustained Heal
+True Invisibilty

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-Squishy
-Useless if behind
-Needs kills to be effective

One Goal.

Kill most productive or most fed member of the team.

Ignore tanks as much as you can and watch the Dusk passive blink.
Make sure you kill a camp before you fight, otherwise your Dark Harvest is rendered useless.