The Warhammer of Sacrifice
Weapon (warhammer), Legendary (requires atunement)
You gain a +1 bonus to attack and damage rolls made with Storm’s Herald. In addition, while you carry the warhammer, you can strike the ground with it to cast thunderwave (save DC 15). You can’t use this property again until you finish a long rest.
Whenever you use Storm’s Herald to reduce a creature to 0 hit points, the warhammer slays the creature and devours its soul, if it has one. Souls devoured this way become prisoners of The Old Voice and can be restored to life only by a wish spell. When it devours a soul, the warhammer grants you temporary hit points equal to twice your character level. These hit points fade at dawn.
The wielder unlocks additional powers if they are at least a certain level:
• Level 8: You can point Storm’s Herald forward to cast lightning bolt. You can’t use this property again until you finish a long rest.
• Level 12: You gain an additional +1 bonus to attack and damage rolls made with this weapon.
• Level 16: You can cast call lightning as an 8th level spell. You can’t use this property again until you finish a long rest.
• Level 20: You gain an additional +1 bonus to attack and damage rolls made with this weapon. Additionally, you can raise Storm’s Herald up to the sky to cast meteor swarm. You can’t use this property again until you finish a long rest.
Long ago, the high priestess of the golden dwarves had a dream of the end times, Ragnarok. In that dream she gazed upon a warhammer that would herald both the end and the new beginning. When she awoke, she called upon the finest smiths in the kingdom and tasked them to create the weapon imprinted in her mind. Thus, Storm’s Herald was created. Dwarven runes of power are etched along the surface of this exquisite magic weapon. The warhammer feels unnaturally light when wielded yet it strikes with tremendous force. The wielder has advantage on Diplomacy and Intimidate checks when dealing with dwarves.
Lost to the ages, the warhammer’s power has waned and been corrupted since it fell into the hands of the Deep Cult. They’ve certainly left their mark on the ancient weapon.