Sky HammerWeapon 20
Source Pathfinder Core Rulebook
Damage 1d8 Bludgeoning
Type Martial
Price 70,000 gp
Weight 1 bulk
The sturdy, steel head of this +3 major striking Flaming Shock orichalcum warhammer is shaped like a blazing comet.
Activate 
command
Trigger Your attack roll with the sky hammer is a critical success
Effect A 6th-level arcane Fireball spell explodes, centered on the sky hammer. The spell DC is 45. You are immune to the fireball's effect, though your allies are not.
Craft Requirements Supply a casting of fireball (6th level), and the initial raw materials must include 12,375 gp of orichalcum.
Traits
This rarity indicates that a rules element is very difficult to find in the game world. A rare feat, spell, item or the like is available to players only if the GM decides to include it in the game, typically through discovery during play. Creatures with this trait are rare. They typically can't be summoned. The DC of Recall Knowledge checks related to these creatures is increased by 5.
EvocationEffects and magic items with this trait are associated with the evocation school of magic, typically involving energy and elemental forces.
MagicalSomething with the magical trait is imbued with magical energies not tied to a specific tradition of magic. A magical item radiates a magic aura infused with its dominant school of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.
ShoveYou can use this weapon to Shove with the Athletics skill even if you don't have a free hand. This uses the weapon's reach (if different from your own) and adds the weapon's item bonus to attack rolls as an item bonus to the Athletics check. If you critically fail a check to Shove using the weapon, you can drop the weapon to take the effects of a failure instead of a critical failure.