So, in a bit more detail, she has two triggers with two different effects. The first trigger is Self Preservation, meaning if she takes enough of a beating to "Pass out" she'll stop just defending herself and actually try to kill whoever was attacking her, until they either die or escape, then turn her attacks on anyone besides Carson who comes near her until he can snap her out of it or she passes out from exhaustion. The second trigger is Defend Carson, meaning if Carson is seriously wounded or in mortal danger, she'll go into that state and kill whatever was threatening him, then whoever gets close to him. The state exists because she's a non-violent person, so to be able to defend herself she has to fight without being aware. The only thing it doesn't apply to is Puppeteers, because she sees them as a scourge on the world rather than actual living beings, so has no problem killing them.