Weapon of Mooring

Weapon - rare - requires attunement

This weapon is made of a dense iron and has the heavy property. You gain a +1 bonus to attack and damage rolls made with this magic weapon. Whenever you hit a Large or smaller creature with this weapon, that creature’s speed is reduced by 5 feet until the end of its next turn.

The beast's movements became more sluggish. Labored. Almost as if it were struggling to use the muscles that were bulging from its limbs. The deep ring of the weapon's metal continued to resonate with each strike it made.