Geez, I've commented a bunch on this thread today and haven't made any analysis! Let's fix that.

Sylph: Sylph’s are similar to witches but they manipulate their aspect in a more abstract way, with a focus on healing. They can manipulate their aspect to heal other people, as well as their aspect itself by manifesting it in some way. Their aspect is something that’s fragile or weak in their session, and they always take it as their personal duty to fix it.

Rage: Insanity, chaos, destruction, obsession/conviction, and negative emotions with a huge focus on anger. Associated with physical strength, many rage classes would be brawlers in an rpg. They reach their full potential when pushed to their mental limit and/or under an extreme amount of stress.

Alright, we're at the point in the queue with four sylph's in a row after not having done a single one yet. Neat! First one is a bit of a challenge if I'm being honest. Since Sylph's are specifically players who heal their aspect and heal others with their aspect, they interact with some aspects a bit strangely. Because of how straightforward they are these analysis's may also be a bit shorter than usual.

My personal take is that a Sylph of Rage is someone who absolutely hates people who are weak, overly passive or too nice, or lack any sort of anger. Chaos and rage are extremely important to them. A lack of chaos is something that they see as an issue. If they meet someone who seems to never experience or express any sort of negative emotion, they'll "fix" them, sparking rage into them. A powerful Sylph of Rage would literally drive others insane.

Their session would likely start out very straightforward with little conflict, with very little rage within it. Their duty would be to cause anger, chaos, and destruction.

More likely than not, a Sylph of Rage just wouldn't be a very good person because of the role one would have in the story. Healing rage itself and "fixing" people who lack rage can be taken in a positive way with some creativity of course, but more often than not, they'll be an antagonist within the story.