Skin changes – Janna as a Haloween nightmare. Specific in-game changes:

• Model: New model and textures – A dark, but cute, witchy outfit! And a new pumpkin cat friend!.
• New particles: New VFX for all spells – Ghosts, pumpkin cat, and a full moon!.
• New animations: New recall animation – She scolds her broom before flying off into the night!.
• New sounds: New SFX for all spells – Spooky! …But not too spooky!.

Skin bio & introduction: – It’s Janna’s favorite season once again—when dark spirits rise from the earth, and hidden troves of candy are enjoyed by all. Don your best disguise and ride into the night, for the witching hour is upon us!

How to get this skin? – The skin is not available for purchase and has been placed in the Legacy Vault (they can still be mystery gifted, and only appear in a champion’s information tab if owned). The vault is usually opened for limited runs and this skin can then be purchased in the Riot Store. In my experience it can be rather long between each opening of the Legacy Vault, hang tight!

Worth buying? – Bewitching Janna is a Legacy vault skin — rarely available and not in the regular store. It includes custom particles, new animations, new sounds. You can preview any skin for free on the PBE server before buying. Learn how to access the PBE here.