[BotS] [Item] The Cheated Lord

Weapon Heavy, Reach, Two-Handed, Magical Legendary (this item requires attunement)

You have a +3 bonus to attack and damage rolls with this weapon.

You have proficiency with Glaives while using this weapon.

When you hit with this weapon the target must make a Constitution saving throw equal or greater than your attack roll. If the target fails then they take an additional 1d10 cold damage. If the target fails by 10 or more, they become frozen. The target is Frozen for 3 turns, or until it takes fire damage.

If you hit a Frozen target with this weapon, the target must make a Constitution saving throw equal to or greater than your attack roll. If the target fails then they take 2d10 cold damage. If they target fails by 5 or more, they become vulnerable to cold damage. The target remains Frozen for 3 turns, or until it takes fire damage.

If you critically hit with this weapon the target automatically fails their Constitution saving throw.

This can only affect one target per round and cannot effect a target more than once per round.