Serpent Domain

Granted Powers: Over time, your devotion bestows you with serpentine traits. As the great serpent, you can hypnotize prey with your serpentine glare and slowly develop immunity to poisons.

Serpent’s Gaze (Sp) As a full-round action, you
can attempt a gaze attack to hypnotize a single
opponent within 30 feet as per the hypnotism spell.  You can use this ability a number of times per day equal to 3 + your Wisdom modifier.

Poison Resistance (Ex) At 8th level, whenever you
fail your primary saving throw against poison, you automatically gain a second attempt to avoid the negative effects. At 12th level, you gain immunity to poison.

Domain Spells 1st—magic fang, 2nd—summon swarm (snakes only), 3rd—greater magic fang, 4th—charm monster, 5th—animal growth, 6th—irresistible dance, 7th—creeping doom (Tiny snakes), 8th—animal shapes (snake forms only), 9th—summon nature’s ally IX (snakes only).