Sculk Sceptor

This would be a new weapon you could find in the loot chests of the deep dark. What you do with the sculk sceptor is either attack mobs with it, or hold it in your offhand and use another weapon to slash enemies. When you do either of these things, the Sculk sceptor will absorb the kinetic energy of the blows, causing it to charge up with power. When it has any level of power, you can use the sceptor to shoot a blast of Sculk energy at any mobs. The more energy stored in the sceptor, the more damage mobs will take from the projectiles. You can enchant it with stuff like unbreaking and mending since it’ll have durability, but there can also be new enchantments that allow the sceptor to absorb more energy, or to absorb energy faster