The Silencing musket

Weapon Magical, two-handed, loading, Very Rare (this item requires attunement) [Evocation, Illusion, Divination, Transmutation]

A masterfully crafted musket and perfectly balanced for the ease of use while moving. This musket has a basic sight along the length for aiming. If the wielder is attuned to the weapon they may use the following abilities: As part of an attack action, you can expend a spell slot of the appropriate level to add one of the following effects

Enhanced shot: level 1, 3, 5 spell slot: add one damage die to the weapon 1 d12 for a level 1 spell slot, 2 d12 for a level 3 spell slot, or 3 d12 for a level 5 spell slot.

Rend concentration: Level 1 spell slot: on a successful attack the target automatically fails any concentration check.

Masked shot: Level 2 spell slot: the attack does not break stealth.

Arcane anchor: Level 3 spell slot: the target cannot use any form of magical movement or transmutation magic for 1d8 rounds.

Arcane sever: Level 4 spell slot: the attack deals no damage to the target but instead the target makes an intelligence saving through on a failed save they lose 2d4 spell slots starting with the highest spell slots, on a successful save it is 1d4 starting with the lowest spell slots.

Null shot: Level 5: the target cannot for any reason use spells or magical abilities for a number of rounds equal to the damage dealt by this weapon original damage die (ignore bonus dice from a critical hit, sneak attack bonuses, etc.).