Cospri's Will Assassin's Garb mechanic question

How does it works?

Can I poison cursed enemys with any spell or just physical and chaos damage will poison?

http://pathofexile.gamepedia.com/Cospri%27s_Will

any and all hits from physical and/or chaos damage will poison. this includes spells

I got it, but spell like fire storm will poison enemys? [without chaos damage]

and if I have chaos damage on Firestorm, will it poison enemys just with 8% the chaos damage on spell or will poison with all spell damage?

Poison is ALWAYS only based on physical and chaos damage dealt unless something explicitly says otherwise (and currently nothing does... if something did, it'd be similar to how Voltaxic says 'your chaos damage can shock').


All Cospri's does is give you the ability to poison under a certain condition. Beyond what's explicitly stated, there's no other changes from the usual poison behavior.