[@Hekazu]

The wonderful thing about illusions is that with enough creativity and a high enough caster level, they can do anything.

[quote=Phantasmal Force]
You craft an illusion that takes root in the mind of a creature that you can see within range.
The target must make an Intelligence saving throw. On a failed save, you create a phantasmal object, creature, or other visible phenomenon of your choice that is no larger than a 10-foot cube and that is perceivable only to the target for the duration. This spell has no effect on undead or constructs.

[b]The phantasm includes sound, temperature, and other stimuli, also evident only to the creature.[/b]

The target can use its action to examine the phantasm with an Intelligence (Investigation) check against your spell save DC. If the check succeeds, the target realizes that the phantasm is an illusion, and the spell ends.

While a target is affected by the spell, the target treats the phantasm as if it were real. The target rationalizes any illogical outcomes from interacting with the phantasm. For example, a target attempting to walk across a phantasmal bridge that spans a chasm falls once it steps onto the bridge. If the target survives the fall, it still believes that the bridge exists and comes up with some other explanation for its fall—it was pushed, it slipped, or a strong wind might have knocked it off.

An affected target is so convinced of the phantasm’s reality that it can even take damage from the illusion. A phantasm created to appear as a creature can attack the target. Similarly, a phantasm created to appear as fire, a pool of acid, or lava can burn the target. Each round on your turn, the phantasm can deal 1d6 psychic damage to the target if it is in the phantasm’s area or within 5 feet of the phantasm, provided that the illusion is of a creature or hazard that could logically deal damage, such as by attacking. The target perceives the damage as a type appropriate to the illusion.[/quote]

Bold is mines. I figured that I could do more than just blind him, but also include other effects as well, just to be on the safer side.

What Cyanwrath would see is a cloud of greenish-black fog assault him, effectively blinding him as well as "poisoning" him (This is what the Phantasmal Force damage would feel like). It's pretty much Parum faking a Stinking Cloud spell, while also using the phantasm to amplify her music in order to deafen him as well, just for good measure. And best of all since it's a phantasmal force and not an actual stinking cloud spell, only Cyanwrath would be affected, leaving Parum's allies to take advantage of his simulated blindness/deafness/poisoned condition.

Understandably this might seem quite powerful for just a second-level spell, but Illusions tend to have that drawback of "far more useful than it's given level if people don't realize it's an illusion". They're great as long as the enemy doesn't ubiquitously know it's not possible and thus ignore it. Though at least with Phantasmal Force, it'll eat Cyanwrath's action if he wants to save from it.