Evolvyrn

Evolvyrns are a unique type of alien transformation from the series Tech Cross.

Overview
Evolvyrns are alien DNA samples that have been modified to express changes in the sample's phenotype; put simply, while the base species stays the same, the way certain traits are expressed (such as appearance and abilities) can vary wildly.

Evolvyrn samples are notable for evolving themselves during use, resulting in further changes to their phenotype as time goes on. These mutations build up in the sample over time and are usually driven by the user being placed under advanced stress, forcing the sample to adapt. On the most basic level, this means that the more an Evolvyrn fights, the stronger they become; however, these adaptations, like all evolutionary trade-offs, have the potential to create new vulnerabilities as well.

Use
Any person of any species can become an Evolvyrn via the use of an EvoLock and an EvoKey. EvoKeys are essentially specialized containers for Evolvyrn DNA, with each key carrying a unique sample, while EvoLocks are blank transformation matrices that act as the conduit for the Evolvyrn sample to be used with.

Acquisition
The only way to obtain an Evolvyrn transformation is by temporarily contracting out an EvoLock and EvoKey from the devices' official distributor, the Raivent Corporation. It is illegal to create or sell any part of the Evolvyrn system, meaning that creating custom Evolvyrns or purchasing an EvoLock and EvoKey for permanent use is not an option.

The original manufacturer of the Evolvyrn system remains unknown, but the Raivent Corporation has provided documents confirming that they neither manufactured nor purchased the system, leaving them technically immune to any potential legal action.

Types
There are over 100 Evolvyrn samples currently known to exist, with the exact number being difficult to pin down without insider information from the distributors. It is known that there is never more than one of each DNA sample, with each EvoKey holding an entirely unique transformation.

Trivia

 * The Evolvyrns are corrupted versions of almost every basic alien form from across the Tech 10 franchise as a whole.