Title: The Shidim's Fall

Genres: Low Magic Fantasy, Medieval setting.

Audience demographic: 18+ Lovers of the genre.

AYZA was an outcast who found a family in the secret order of the Shidim, which fights for those without a voice against unjust rulers. When the Shidim's members start being hunted down, Ayza rises to lead a cadre of six in a desperate struggle for survival, uncovering the darkest secret of the order along the way: the ones hunting them are driven by vengeance because it was the Shidim who set in motion the massacre of their kin, the Disgraced - a people endowed with body-altering gifts.

An interesting concept, but too much info. Trim the fat and save the details for the script. Your logline is, essentially, the trailer for your screenplay. It should be short, punchy, and get the gist across without giving too much away.

The general rule of thumb is 25-35 words, and you want to indicate the inciting incident, the protag, the conflict, and the stakes.

So, going by what you've provided, it looks like the meat and potatoes is this bit:

Quoted Text When the Shidim's members start being hunted down, Ayza rises to lead a cadre of six in a desperate struggle for survival, uncovering the darkest secret of the order along the way.

Inciting incident: Members of her group are targeted
Protag: Ayza
Conflict: the other group is more powerful (I'm assuming?)
Stakes: survival

So you have all the necessities there, you just need to tighten it up a bit. Something along the lines of:

When members of her peaceful group are targeted, a female warrior must lead a cadre against a more powerful enemy, uncovering the darkest secret of the order along the way.

Something along those lines. I made some assumptions, such as her group being peaceful, and the predatory group being more powerful. But this is generally what you want to aim for.

Hope this helps.

This is amazing, concise, actionable feedback and I cannot thank you enough for the time you have taken to review my logline.