[0.3] [Concept build] Poison explosion Pathfinder using fairgraves curse bow

So a lot of people been saying that the fairgraves bow is glitched, broken but I might have found a solution.

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Phantasma Arrow
Converts 20% of Physical Damage to Fire Damage
Arrow duration is 1.5 seconds.
Converts 100% of Physical Damage to Fire Damage
Inflicts 200% more Flammability Magnitude
Ignites inflicted by this Skill Spread to other
enemies that stay within 1.8 metres for 1 second
Arrow duration is 1.5 seconds
Explosion radius is (1.5–2.4) metres

Now this is where things get inresting:

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Poisonburst Arrow
(0–20)% increased Magnitude of Poison inflicted
Poison Burst
Poison inflicted by this Skill is affected by Modifiers to Skill Effect Duration
Does not Hit, but Poisons enemies as though Hitting them
Burst radius is (1.5–2.4) metres
Poison duration is (3–4.9) seconds

You probably think that I have not found anything intresting but
Poisonburst Arrow triggers the explosion of Phantasma Arrow
and spread it together with ignite and poison.

If I understand the tech correct:
Even if you have low roll bow, you can tag enemies and then finish them off with Poisonburst arrow.

I havent played much around with it but if someone is intresting in playing

Here is my POB so far: https://pobb.in/ilv4dDiiMogo

All I did is stack poison/chaos on tree and flammability and fire dmg on gear.
It has no defensive mechanics other than Wind Dancer really and some EV on tree.