The amphibious Grenchler lurks in marsh areas in search of prey. Fearless, it will spring from hiding and attack anything that moves. If it is unable to fell its prey with its powerful jaws, it will fire a potent burst of energy at them. Grenchlers have one weak spot - a genetic defect makes the shell on their back susceptible to explosive blasts. Remove the shell to expose a vulnerable nerve center, then target it to eliminate the creature.