Essence is made by 3 types of nexus: Light nexus, Neutral nexus (A.K.A Blue nexus, Essence nexus or Item Nexus) and a Dark nexus.
Essence also comes in three different forms:
The word essence in ars magica also refers to reagents which i will not be talking about in this topic. I'm simply talking about the magical energy found in ars magica.
So what is a nexus, how do you make it and how do you use it?
A nexus is an essence making machine that either converts things to essence or just simply pulls essence out from thin air.
So how do you make a nexus?
There are three types of nexus in ars magica like I mentioned before and they are all made differently.
The most basic nexus is the light nexus. It can hold up to 30,000 essence and is made with 8 quartz blocks and 4 glass blocks. To make it you first need to place a 2 block high quartz block in every 5x5 corner then you need to put 1 glass block on top of each of these 4 pillars. Then you right click in the centre of this 5x5 area with a white chalk and it should look like this:
The light nexus gathers essence from the atmosphere over time at the rate of around 5 essence per second. Gold or diamond blocks can be placed on top of each pillar instead of glass to allow more essence to be gathered per second. Gold can make up to 25 essence per second and diamond 50 essence per second.
Note: Any block can be used underneath the nexus. You do not need stone slabs underneath a nexus.
If you are using minecraft 1.4.7 or under use snow blocks instead of quartz blocks.
The next type of nexus that you can make is a neutral nexus. It can hold up to 650,000 essence. It is made the same way as a light nexus but with a few differences. This time you use stone bricks in each corner of a 5x5 area, you put chiselled stone bricks on top of it then you use blue chalk in the center of the nexus. If you did it correctly the chalk in the center should turn dark blue and start spinning like this:
To use a neutral nexus throw items into it so that it can be turned into essence.
Ways you could use a neutral nexus:
Way 1: A way to turn monster loot into essence after killing a monster in a dungeon.
Way 2: Recycling junk (unwanted things such as near broken tools, dirt, gravel, cobblestone etc.)
Note* As of 1.5.2 Mithion has stated that the neutral nexus will be removed due to some issues with balancing the game.
Lastly, there is one more type of nexus that exists. The dark nexus. To make it place 2 nether-brick in each corner of a 5x5 area, put obsidian on top of each pillar then use red chalk in the center. If you set up the nexus correctly the chalk should turn red and start spinning like this:
A creeper being pulled in by a dark nexus.
Note* While something is being pulled towards a dark nexus it completely ignores gravity and seems to float towards the nexus
The same creeper with its life essence being sucked out by the dark nexus:
Ways you could use dark nexus:
Way 1: Gathering essence at night by scattering them across your world
(Just imagine this at night. The mobs would spawn and would get destroyed by the dark nexus when they get too close to it.)
Placing them in a dungeon to get an infinite source of dark essence
Using them as a defence against mobs
Putting them somewhere to negate a mobs fall damage
(You could have a zombie fall 1000 blocks high and push but it wont receive any fall damage. Instead the dark nexus would stop the fall when it is close enough to it then it would pull it towards the center of the nexus then the nexus would kill it. Anyways how are you supposed to get a zombie 1000 blocks high?)
Machines that use essence
(Sorry guys the rest of the tutorial isn't ready yet. Some images and a continuation of this topic will be added in the future. If you want to view what is in this section then click on the spoiler button. For now please just ask me what you need help with. Thx –DragonAce4314)