Niche

A niche, in the context of magic, refers to a finite, synthetic physical environment within a timeline accessible through a permanent portal. In less scientific terms, it's a pocket dimension.

Niche spells can be cast by most reasonably powerful magic users who have experience in lower dimensional spells. The size of the niche depends on the power of the caster and efficiency of the spell. The caster has full control over the environment, though there are documented instances of strong magic users being able to manipulate others' niches.

Niches are sustained by drawing essence from the outside world through their entrance, and require constant concentration. To alleviate this burden, the spell may be transferred to a conductive object, allowing the niche to last as long as the object remains intact. A niche thus transferred can then be more easily manipulated by dimensional magic users.

Niches are mainly known for their use by High lupions, forming the locations of nearly all High lupion communities. It is rumored that lupions have discovered a highly efficient version of the spell, but no concrete evidence has been gathered on the matter.