> For the complete documentation index, see [llms.txt](https://whitepaper.somo.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.somo.xyz/new-trainers-guide/somos-core-playable-characters/somo-evolution.md).
# SOMO Evolution
SOMOs can be evolved to stronger forms, unlocking potential and significantly increasing their battling ability. Evolution can be achieved by combining multiple SOMOs of the same class and paying an in-game fee.
Each SOMO has three evolution tiers. Evolution of SOMOs is a major factor in building the strongest SOMO squad and rising to the top of the SOMO universe.
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