AnkylostarWeapon 13
Source Pathfinder #154: Siege of the Dinosaurs
Damage 3d6 Bludgeoning
Type Simple
Price 2,800 gp
Weight 1 bulk
This hefty spiked club is made from the fossilized tail-club of a young ankylosaurus. It can be wielded as a +2 greater striking morningstar.
Activate 
command
Effect The ankylostar grows and transforms into a +2 greater striking greatclub, but it retains the versatile (piercing) trait of a morningstar. While in this form, the ankylostar has Bulk 2 and requires two hands to wield. It can be returned to its morningstar form with another 1-action command.
Activate 
command, Interact
Frequency once per day
Requirements The ankylostar is in its greatclub form
Effect The ankylostar's length extends as you swing the club in a wide arc. You Strike up to three creatures in a 15-foot cone; this counts as one attack for the purpose of calculating your multiple attack penalty. Alternatively, you Shove up to three creatures in a 15-foot cone, rolling a separate Athletics check for each creature.
Traits
Something of uncommon rarity requires special training or comes from a particular culture or part of the world. Some character choices give access to uncommon options, and the GM can choose to allow access for anyone. Less is known about uncommon creatures than common creatures. They typically can't be summoned. The DC of Recall Knowledge checks related to these creature is increased by 2.
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.
TransmutationEffects and magic items with this trait are associated with the transmutation school of magic, typically changing something's form.
VersatileA versatile weapon can be used to deal a different type of damage than that listed in the Damage entry. This trait indicates the alternate damage type. For instance, a piercing weapon that is versatile S can be used to deal piercing or slashing damage. You choose the damage type each time you make an attack.