Type of spells:

Action - perform an action like creating a fireball

Dimension - acts on space, like creating a barrier or summoning or teleporting

Gem - requires the creation of a gem, like memory gem or an eavesdropping gem.

Explanation of the efficiency of a spell: the less the mana needed to complete the spell, the more efficient the spell.

Three things change a spell—amount of mana used (relating to power), the scale (relating to the area of effect) and the intent.

The scale of a spell (relating to action and dimension spells) is what is affected. For example, in a barrier spell, the scale depends on how big the barrier is. In a fire spell such as a fireball, the scale depends on how big the fireball is.

The intent of the spell is what the spell is supposed to do. It can change depending on the spell. For instance, in a barrier spell, the intent of the spell can be to block physical attacks, magic attacks, sound, etc. The more specific the intent, in example, the less the spell is supposed to do, the more efficient the spell is.

Visualization is the user’s understanding of what the spell is supposed to do. The better the visualization, the more specific the intent becomes. For instance, Nova visualized a snowglobe-like barrier around her. This creates a specific intent as it creates the shape of the barrier, as opposed to if Nova hadn't visualized what the barrier would look like, where the barrier wouldn't have a specific form and therefore the intent of the spell would be more ambiguous.

Gem spells and active spells use mana only once in the creation of the spell, while dimension spells continuously use mana to sustain themselves until released. Active spells are much more efficient than gem spells.

The amount of spells that can be used at once depends on the user’s ability.