Classic World: F/P Mage's Poison Mist:

Stacona

Try to keep this brief to further improve on F/P Mage's new Classic World's Poison Mist.

Poison Mist:
Duration increase to 12 seconds from 5 seconds.
Cooldown increase to 25 seconds from 15 seconds.
Poison damage increase by a bit.
New Addition: When Explosion detonates Poison Mist's poison damage, the damage of that Explosion is also doubled.

The idea here is double down and emphasize the new Poison Mist as this moment of power for big damage opportunity that is mostly used against bosses and elite monsters.

Duration is longer so the player can really notice poison mist being around, the cooldown is longer to be less frequently used and for the moment of power to be more special since it is up less often, and really make the player feel the impact of when poison mist is active with more damage added to it directly both in the poison damage and increasing Explosion's damage with each detonation.

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Optionally can provide another combo with the fire and poison arrow skill (don't remember the name of it) to help make all of these skills to work together and feel less random to each other.

In this space:
Poison Mist:
Duration increase to 12 seconds from 5 seconds.
Cooldown increase to 50 seconds from 15 seconds.
New Addition: Every time [fire and poison arrow skill] hits a monster, reduce the cooldown of Poison Mist by -2 seconds.
Poison damage increase by a lot.
New Addition: When Explosion detonates Poison Mist's poison damage, the damage of that Explosion is also doubled.

Of course in this iteration the cooldown reducing effect and the cooldown on Poison Mist needs to be played around with to feel good for the player and feels like a good mix of infrequent enough to feel this special moment of power, but also not to infrequent that the player feels dissatisfied that they don't see Poison Mist enough.