Ammo-bag of the Prismatic King

This ammo-bag is fashioned from the hide of an extremely rare sea drake, known as the Prismatic King. Heralded for it's mastery over all elements, this beast has sunk many a draking ship. This opalescent bag has several rare gems, each heralded for their use in elemental magics, charged with the power faceted around it's rim.

Any bullet placed into this ammo-bag becomes magical, becoming [Tooltip Not Found]. This magic ammo-bag has 8 charges, and regains 1d8 of these charges at dawn.

While attuned to this magic ammo-bag, you may magically change regular ammunition into 3 unique types; Chaotic  Ammunition, Elemental Ammunition, and Showstopper Ammunition.

Chaotic  Ammunition - Whenever you load a firearm you may expend 1 charge from this bag to load a Chaotic round. Roll 1d8, and look at the table below. The next ranged weapon attack you make with this weapon deals an additional 1d8 of the rolled damage type.

Elemental Blast Ammuntion - Whenever you load a firearm you may expend 2 charges from this bag to load an Elemental round. Choose one of the damage types above. The next ranged weapon attack you make with this weapon deals an additional 2d8 of the chosen type.

Showstopper Ammunition -  Once per day, when you load a firearm, you may load a Showstopper round. When fired, this ammunition causes a line of roaring elemental energy 30 Feet Long and 5 Feet Wide to emanate from you in a direction you choose. Each creature in the line must make a DC 20 Dexterity saving throw. Choose a damage type from the table above. A creature takes 6d8 of the chosen damage type on a failed save, and half as much on a successful one. On each creature that failed,  a small explosion emanates from them. Each creature within a 5 Foot Radius of the original target must make a DC 15 Dexterity saving throw. On a failed save, they take 2d8 of the chosen damage type. The original target automatically fails this saving throw, and takes the additional damage as well.

The beautiful opalescence of the beast bewitched the sailors. They saw only beautiful colors reflecting in the water. By the time they realized that they were under attack, it was too late. In mere seconds their ship was laid to waste, leaving only one survivor among the shipwreck.The last thing he saw was the scaly back of a massive creature breach the surface, and dive once more to the icy depths it called home.

Notes: Bonus: Ranged Weapon Attacks, a creature proficient with both firearms and arcana.