The Dimensional Rifts

Description
A rip in space between dimensions, distorting time and space around it. Special artifacts or powerful arcane arts are required to create them. These rift serve as a gateway between dimensions.

Aether
A Rift created from concentrated Aether, most of which are highly unstable and can cause a variety of negative effects on those who choose to travel them. Due to their greater understanding and ability to manipulate the force, Yra can produce stable Aether Rifts with ease. Stabilized Aether Rifts last much longer and have no adverse effects when used.

Abyssal
Created the same way as Aether rifts (except made from Abyss and not Aether) and causing the same effect to travellers. There are a few differences however. Firstly, Abyssal Rifts can occur naturally in areas with a higher concentration of Abyss. Second, forcefully creating them consumes a portion of the caster's life force which poses a significant risk as the amount consumed varies.

Rift of Creation
The Rift of Creation is different from other variants as it doesn't function as a portal. It constantly produces Aether and Abyss in large quantities, which over time fuse together and give birth to new Yra.

This Rift is encased in a powerful barrier, put in place by Rika herself after she originally created it. The barrier stabilizes the concentration of Abyss that is produced by the Rift, limiting the birth of corrupted Yra as much as possible.