The List of Concepts

The Taint

Taint is a semi-sentient liquid form of  magic, created by failure of casted spell. Every know spell or charm has a chance to become taint, based on its complexity and amount of required energy. Type of failed spell/charm also define specific abilities, which it can posses. When the most basic levitation spells are nearly unbreakable, age-alternation spell has over 12% of chances to fail into a slime.

The Taint is very dangerous, and should be wash off of horn immediately after spell collapse. This entity can be compare to magical cancer, with ability to drain raw unicorn magic directly from horn. Every drained unit of mana, Taint instantly turn into its own mass, and with that, it will increase its hunger and speed of mana drain. It won't stop unless unicorn become completely magic empty, with lethal result, after that it will start search for another meal.

The best way to rid off of Taint is to trap it in physical container (since its artificial mass can easily phase through magical force-field), and wait for it to starve to dry ash.

The Alterform

Alterforms are entity of pure magic, created for 'purpose'. Their existence is based on mirror reflection. Thus they are unable to stand as alone being. The ritual used to create those is very complex and soul-abusing, so it can be performed only by very strong and powerful wizard (which means it is almost impossible to create an Alterform by non-alicorn).

The Alterforms may be described as hoof-made personal daemons. Their are different for each owner, based on 'purpose', for what they were created, and owner personal desires. They can increase strength, intelligence, dexterity, speed, magical skills and/or posses unique abilities. As far as everypony knows, or not, the first ever conjured Alterform was counter-part of Princess Luna - Nightmare Moon.

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