"Species XR17 feeds upon the mental energies of its victims. This explains why the goblins remain unaffected." -Riptide Project researcher
The synapse sliver is a very powerful sliver. It wraps itself around a victim it has ensnared, and sucks the mental energy from the head of its victim through its specialized talon. The victim typically goes limp due to the loss of energy.
Synapse slivers were created by the Riptide project.