Hammer of Mechanus

Martial weapon (maul), rare

This hammer is wielded by Modron captains. Its purpose is to destroy and is sentient, only being able to communicate a simple emotion that it is feeling and its singular mission “Destroy”.

Destroy!

Attack rolls made with this maul have a +0 bonus and are unaffected by any outside factor, including spells, rust, and the wielder's Ability Scores or Proficiency Bonus.

Destroy!

As a reaction to a creature within range making a saving throw, you can attack with this weapon. On a hit, instead of damage, the d20 of their saving throw is set to 10. This reaction must be declared before the creature rolls its saving throw.

Destroy!

When this weapon is about to be used you may use your bonus action to ensure the target will be destroyed, setting your next attack’s d20 roll to 10.