Let's start off with each ability.

Base casts:

Holding down cast will create a outline (if the place you're attempting is valid), of a blackhole. Letting go, will create the blackhole at the place of the outline, with the power of the blackhole that was shown. (relative to the charge of the spell) Once the blackhole expires, it will detonate, releasing any stored objects outwards towards the nearest target. Assuming there isn't a target, it will release them in random directions.




Holding down cast until your spell is fully charged will allow you to do a void morph. Void morphing converts the void magic of the blackhole + mana, to transport a weapon from the void into your hand. Dependent on where your hand is, and which direction it's facing, you will get a different "table" of items. There is two directions your hand can face, and two positions it can be.
Positions: Above your head or below your head (2) Key: 1 = Above your head/ 2 = Below your head
Directions: Pointing up towards the sky, or pointing down towards the ground (2) Key: 1 = Pointing up towards the sky/ 2 = Pointing down towards the ground

1 position / 1 direction = Always a void potion.
2 position / 1 direction = Smaller weapon, dagger, small axe, small sword, etc.
1 position / 2 direction = Always a shield.
2 position / 2 direction = Large weapon. Claymore, spear, bardiche, (yes this includes modded weapons like weapons from MMP).
Videos showing this:




Now for the merges:

Lacrima (Lightning + Blackhole):
Creates a blackhole filled with lightning that you control via your base cast. Removes your base casts abilities until you detonate the blackhole.
To detonate the black hole, fill your base cast to 100% charge, and then press in your grip button (the button you press to grab an item.)
On detonation, will electrocute nearby enemies and weapons to full charge.


Smeltery (Fire + Blackhole):
Create a fiery radiated blackhole. It will suck in any object that gets within a ~5 meter radius of it, and will cook it once it's inside. After ~3 seconds, it will spit it out on fire. That weapon will now deal radiation damage for the next ~80 hits. Will also have permanent fire imbue. Blackhole can smelt a maximum of 5 items before burning out.

Guardian (Gravity + Blackhole):
Create a blackhole that stays above your head that will grab nearby objects, including out of enemies hands and absorb them. Nearby enemies will receive damage via the blackhole "guarding" the player, by throwing absorbed items at the enemies.


Cataclysm (Blackhole + Blackhole):
Creates a world ending event that summons a large blackhole above the merge point, that will spawn in tinier blackholes around it, that will summon weapons from the void realm that launch erratically. At enemies, at the ground, and in some cases at the caster. If a blackhole is placed (Base cast of the spell) while a Cataclysm event is going on, all blackholes will launch their void weapon(s) towards the blackhole to boost it's power.



Void sickness & weapons:

Void potion:
Inflicts void sickness.
Heals 80 HP.
Gives 80 focus.
Gives 80 mana.

Void weapon(s):
Inflicts void sickness.
Has increased damage.
Has increased knockback.

Void sickness:
If you have the blackhole spell (player will), you will gain 50% extra HP while in void sickness mode.
If you do not have the blackhole spell (Do not worry if you're the player.) you will lose 50% max HP.
Your skin will go into void mode, and appear distorted.
Your vision will also go into void mode, which will give you x-ray vision and possibly seizures.
(Please read) Known issue: Females may appear nude if you inflict void sickness on them.