Editing Changeling (section)

===Regeneration===
Also known as Regenerative Stasis, changelings have the ability to 'kill' themselves, and appear dead for two minutes. After this period is over, the changeling can revive at will, fully healed of all injuries and illness. Both entering stasis and leaving it cost 10 chemicals, so make sure you have at least 20 before you are slain and must activate it.

This makes them nigh-unkillable, as they can fully regenerate themselves <b>even from death</b> if their bodies are intact and they have enough chemicals. Spaced changelings may also be able to make it back on station given enough time. The best way to permanently deal with a changeling is to gib it or cremate it in the chapel.