Your Constitution increases by 2 and one other ability score of your choice increases by 1. 

Chimera reach adulthood around the same time as humans, but can live up to 300 years.

Your amorphous nature allows for an adaptive size. Your size is Medium or Small. 

You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray.

You are built to adapt and to change. You gain proficiency in the Survival skill. Additionally you gain resistance to poison damage and have advantage on saving throws made to avoid poison and disease. 

You can choose to ingest part of another creature and until your next long rest you may use an attribute or ability of that creature, such as a dragon’s breath weapon feature or a troll’s regeneration ability. You may only benefit from one ability from one creature at a time, and you may choose to replace the current ability with a new one at any time. If you choose to replace the current manifestation with another, you must ingest the original creature in order to regain that ability. If you have the Spellcasting or Pact Magic feature, you may gain spells from the creature, though not above a level of spell that you have slots for. 

This ability scales as you grow, allowing you to maintain multiple manifestations. The number of manifestations increases at 5th level (2), 10th level (3), 15th level (4), and at 20th level (5). 

You can speak, read, and write Common and Draconic.