These fractals were originally part of the paradict's design but eventually spun off into their own thing. The chaos fractal is one of my favorites - just random things happening throughout battle, both good and bad as chaos should be. The Infinity fractal is a defensive monster that uses the exploding dice mechanic as much as possible - incapacitating its Infinity Shield should be a first priority. Finally, Void Fractals are ambushers that steal targets away from battles and hides in shadows, encouraging players to light up the surroundings.
Flavor-wise they're cool to think about too. They kind of glitch the world around them and I think I'd have fun describing an Infinity Fractal repeating the same rock features around it like glitches in the Matrix. These are creatures like weird elementals, so they can also spring up from other concepts like law, order, time, destiny, or even feelings like ambition.
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Fractals are the living forms of intangible concepts. Similar to how air, earth, fire, and water elementals emerge from the swirling elemental chaos, fractals manifest from residual pockets of concentrated time, space, order, chaos, infinity, or void. Most spontaneously appear when those energies pool and overflow, coalescing into scintillating crystalline form. Each kind of fractal can be recognized by their appearance and how they uniquely alter the environment with their mere presence.