Recommended skill build
Level 1 - Nature's Guise
Level 2 -Living Armor
Level 3 - Leech Seed
Level 4 - Leech Seed
Level 5 - Leech Seed
Level 6 - Overgrowth
Level 7 - Leech Seed
Level 8 - Living Armor
Level 9 - Living Armor
Level 10 - Living Armor
Level 11 - Overgrowth
Level 12 - Nature's Guise
Level 13 - Nature's Guise
Level 14 - Nature's Guise
Level 15 - Stats
Level 16 - Overgrowth
Level 17+ - Stats

Note: Build may be varied due to gamplay, but for players who still dont know how to play roofie, I recommened you to take the skill build above
Justification for Level 1-6 (Early game)
About Nature's Guise, we only take a level of it, so we can avoid ganks, first blood, chasers. Take note we have to max first the leech seed so we can easily finish of an enemy or heal someone who needs heal, Also note on it can be spammable 2 or 3 times when maxed. And of course (Obviously) Take Overgrowth when it's possible.


Justification for Level 7-11 (Mid game)
This is the part where you have to max leech seed (Want to know the reason? see It in early game). After we maxed out the Leech Seed, We have Maxed up the Living Armor up to Level 9 so we can even add support. Well sir, why dont we take Nature's Guise since when maxed, we have big advantage from the long duration of it, well it's because we dont actually need the long duration, just at least 15 seconds to prevents kills from your enemies. So now, just level up Overgrowth at Level 11.


Justification for Level 12-16 (Late game)
Now if i were you, i would take the stats instead, but it's not recommended anyway, so just max up the Nature's guise till' Level 14 then also max up Overgrowth. Make sure the Nature's Guise gives it's usefulness, that means you have to spam it when possible.


Justification for Level 17-25 (End game)
Just max up the stats, or if you leveled up the stats first, then max up the nature's guise in Level 23-25 if you want to.