Seeking fireflies and healing - VFX and gameplay study

Fireflies gameplay:
* Fireflies follow a designated path
* Fireflies get aggro if you get inside its aggroo range, and instantly get aggroed if you touch them
* When aggroed, they'll chase you until they have killed you or you are outside their aggro range for 2 secs. Once deaggroed, they'll go back to their path
* You can only heal if you are hurt