Once every 1d4 rounds, as a standard action, a uraeus's head can expel a 30-foot-line of poison. All creatures in the area are blinded for 1 round and must save against poison (Reflex DC 15 negates both). As a full-round action, a uraeus can either expel two lines or bite with one head and breathe poison with the other. Each head tracks its breath weapon's availability separately.