Source: Arcana Unleashed
Armor (Any Light or Medium), Very Rare (Requires Attunement)
You gain a +1 bonus to Armor Class while wearing this armor. The armor is enchanted to look like a scholarly or priestly robe.
Mountain Walker. While you’re wearing this armor, Difficult Terrain composed of heavy snow, ice, rubble, or undergrowth doesn’t cost you extra movement.
Grasping Tendrils. As a Magic action, you can activate the armor, causing the hems of its sleeves and body to extend into ribbonlike tendrils.
As a Bonus Action while the armor is active, you can force each creature of your choice in a 20-foot Emanation originating from you to make a DC 15 Strength saving throw. On a failed save, a creature has the Grappled condition (escape DC 15) and is pulled up to 20 feet straight toward you.
The armor remains active for 1 minute or until you take another Magic action to deactivate it. Once you activate the armor, it can’t be activated again until the next dawn.