Lament, Variant (5e Equipment)

Weapon (Revolver), Legendary (requires attunement by a spellcaster)

2d8+Dex

Elemental Ammo This magic weapon grants a +2 bonus to attack and damage rolls made with it when it's used to make a ranged attack, and it ignores the loading property if it has it. It produces its own ammunition, automatically creating one piece of magic ammunition when you make a ranged attack with it. The ammunition created by the weapon vanishes the instant after it hits or misses a target.

Elemental Chamber When the revolver is in its default state, it looks like a normal revolver. However, when the user spins the cylinder, the weapon transforms into the selected element and deals that elements damage. The available elements for selection are Force (Vortex chamber), Fire (Flame chamber), Acid (Beaker chamber), and Ice (Snowflake chamber).

Force: The revolver transforms into a purple, ethereal weapon with a swirling vortex pattern on the barrel. On a hit, the target must make a Str save against your spell save DC or be pushed back 5 feet. This push does not grant attacks of opportunity.

Fire: The revolver transforms into an orange, glowing weapon with a fiery flame pattern on the barrel. On a hit, the target must succeed on a Dex saving throw against your spell save DC or take 1d8 additional fire damage. It ignites flammable objects that aren't being worn or carried.

Acid: The revolver transforms into a green weapon with a beaker pattern on the barrel. On a hit, if the target is a construct, they take an additional 2d8 acid damage. Objects that are metal or wood and no greater than 1 ft. thick have a 1-inch hole carved through. 

Ice: The revolver transforms into a blue, icey weapon with a snowflake pattern on the barrel. On a hit, the target must make a Con save against your spell save DC or lose 10 feet of movement for 1 minute. When fired at a flat piece of ground, it creates a 5-foot square of difficult terrain for 1 minute.