Haemstrike Warhammer (Uncommon)

This weapon is naturally attracted to foes bearing ferrous metals, allowing it to strike them with more force. Those who align themselves more closely with the weapon are granted the ability to manipulate gravity, telekinetically pulling creatures and objects into range of its jagged-faced swings. You gain a +2 bonus to attack and damage rolls made with this magic weapon against targets made of ferrous metal or wearing ferrous armor.

Optional Attunement: If you choose to attune to this weapon, it gains the Attraction property. When you activate a property granted by this optional attunement, roll a d4. On a 1, haemstrike's optional attunement properties can't be activated until the next dawn.

OA: Attraction: As a bonus action, you can point haemstrike at a target you can see within 30 feet of you. If the target is an object that weighs less than 300 pounds, the object is pulled up to 15 feet towards you. If the target is a creature, it must succeed on a DC 13 Strength saving throw or be pulled up to 15 feet straight towards you. If the creature is made of ferrous metal or is wearing ferrous armor, it has disadvantage on the saving throw. Large or larger creatures automatically succeed on this saving throw.

Versatile: This weapon can be used with one or two hands. A damage value in parentheses appears with the property—the damage when the weapon is used with two hands to make a melee attack.

Proficiency: martial, warhammer Source: Heliana's Guide to Monster Hunting - Part One p. 454, Player's Handbook (2014) p. 149