sentences:  Also, the yellow rings are not restricted from killing sentient beings as the Green Lantern's power rings were, although it is revealed later that blue rings can deplete yellow rings quickly and indigo tribesman can redirect its energy.As a Yellow Lantern, Amon is an excellent intimidator, his ability to instill fear in others being what led to his recruitment to the Sinestro Corps.However, unlike his father, Amon is a coward, ironic as he wields the power of fear.