Godlike/Unique Weapon Idea: Supernova

[ghasT_T]

Concept inspired by Fallout's Laser Musket

Before you realize this another Godlike shotgun suggestion, hear me out.

So the idea is it's a shotgun, that in order to fire it, you have to manually reload each bullet into the gun (could have fast reload or slow reload depending on damage)
Now I bet you are thinking, "wtf omg shotguns are bad as it it, but to have to MANUALLY reload EACH bullet?!"
But here's the catch,
For each bullet loaded in, the damage of the weapon is GREATLY increased.
Why increased greatly? Because when you shoot the Supernova, it uses up all the bullets in it's current clip.

Now this can be considered either overpowered or underpowered (for a Godlike)

Here are some extra ideas:
Possible Nerfs: Reload Crystals do NOT effect this weapon.
                    Reload speed gradually decreases as you load more bullets in.
Possible Buffs: An AoE attack when shooting the maximum clip, could cause like a black hole to appear where you shoot, dragging people in. But this will cause the gun to overheat, damaging yourself for half of your current health (except if you have 1 health, then you just dead)