The reclusive School of the Mutator holds an old form of alchemy thought to be more pure than the other forms. This school focuses on creating special elixirs that change the very nature of one's body.
This feature is a prerequisite for features in the Mutator Feature Tree.
Your alchemical study involves change, but there must always be a trade off. When creating Elixirs, you may add the mutagen effect to one ingestible Elixir of your choice. The mutagen effect on the Elixir dissipates after a long rest and it may only be active on one Elixir at a time. When you drink or administer this mutagen the character gains a +1 bonus to their AC and gains advantage on all Strength, Dexterity, and Constitution ability checks for 1 hour. You can create two mutagens upon reaching 5th tier and three upon reaching 7th tier. You can only be under the effects of one mutagen at a time. Attempting to drink a second mutagen cancels out both mutagens and gives you two levels of exhaustion.