Bronze Horn of Valhalla

Very Rare

Wondrous Item, very rare You can use an action to blow this horn. In response, 4d4+4 warrior spirits from the Valhalla appear within 60 feet of you. They use the statistics of a berserker. They return to Valhalla after 1 hour or when they drop to 0 hit points. Once you use the horn, it can't be used again until 7 days have passed. If you blow the horn without having proficiency with all medium armor, the summoned berserkers attack you. If you meet the requirement, they are friendly to you and your companions and follow your commands.

Belt of Fire Giant Strength

Very Rare

Wondrous Item, very rare (requires attunement) While wearing this belt, your Strength score changes to 25. The item has no effect on you if your Strength without the belt is equal to or greater than 25.