This is another prestige class from a custom pantheon, and I'd like to find out whether you think this class is balanced and playable. The class is combat-weak, but has good skills and spell advancement. Thanks! 
Hooded Healer
These itinerant priests of La'ahl are blessed with supernatural abilities that allows them to magiacally manipulate the toxins produced by snakes, changing what would otherwise be a poison into a mixture with beneficial qualities. They emply this power of the serpent for healing the injured and sick, travelling from village to village and cure what lies beyond the abilities of the local cleric. They stay only long enough to heal the most seriously ill or injured, before moving to the next settlement. While many have some fear of the supernatural serpent powers of hooded healers, they are widely respected and welcomed where they journey.
Hooded healers are noted for their heavy, hooded green robes, in which they can carry their serpent pets and healing supplies. They are mediocre combatants at best, and favor the use of diplomacy or subdual techniques to resolve conflict. Many are skilled at the stealthy arts of staying concealed in order to avoid the ignorant few who fear them enough to lay an ambush or seek to hunt them down as witches.
Hit Die: d4
Requirements
To qualify to become a hooded healer, a character must fulfill all the following criteria.
Alignment: Any Good.
Heal: 9 ranks.
Spells: Ability to cast delay poison as a divine spell.
Feats: Great Fortitude.
Patron: La'ahl.
Special: Must have survived the bite of a poisonous snake without the aid of magical healing.
Class Skills
The hooded healer's class skills (and the key ability for each skill) are Concentration (Con), Craft (Int), Diplomacy (Cha), Disguise (Cha), Handle Animal (Cha), Heal (Wis), Hide (Dex), Knowledge (nature) (Int), Knowledge (religion) (Int), Move Silently (Dex), Profession (Wis), and Spellcraft (Int).
Skill Points at Each Level: 6 + Int modifier.
Class Features
All of the following are class features of the hooded healers.
Weapons and Armor Proficiency: Hooded healers do not gain any additional proficiency with weapons, armor, or shields.
Spells per Day: When a new hooded healer level is gained, the character gains new spells per day as if she has also gained a level in a divine spellcasting class she belonged to before adding the prestige class. She does not, however, gain any other benefit a character of that class would have gained, except for an increased effective level of spellcasting. This essentially means that she adds the level of hooded healer to the level of whatever other divine spellcasting class the character has, then determines spells per day and caster level accordingly. If a character has more than one divine spellcasting class before becoming a hooded healer, she must decide to which class she adds the new level for purposes of determining spells per day.
Subdual (Ex): A hooded healer is instructed in special techniques to quell a conflict without killing her opponent. When employing a melee weapon that normally deals lethal damage to instead deal nonlethal damage, she only suffers a M-^V1 penalty on her attack rolls. She also gains Exotic Weapon Proficiency with the net as a bonus feat.
Treat Snake Wounds (Ex): A hooded healer gains a +2 competence bonus to her Heal skill when treating the wounds and poisonous effects dealt by a snake. If she has ranks in Craft (alchemy), she also gains a +2 competence bonus to her Craft (alchemy) skill when creating antitoxins.
Serpent Empathy (Ex): At 2nd level, a hooded healer gains the wild empathy ability of Druids when dealing with snakes. She can use the same ability when interacting with other reptiles, but has a -4 adjustment to the wild empathy check. If the hooded healer has class levels as a druid or ranger, she can combine her class levels when making the wild empathy check against snakes or other reptiles.
Sleep Healing (Su): Upon reaching 2nd level, a hooded healer begins to recover from wounds at a supernaturally accelerated rate. So long as she has at least 1 hit point remaining, she heals 1 point of damage every hour she is asleep. This is in addition to normal healing gained while resting, and due to the use of the Heal skill.
At 5th level, the rate of sleep healing increases to 2 points of damage healed each full hour while asleep.
Poison Resistance (Su): Starting at 3rd level, hooded healers become especially resistant to the toxin in a snake bite. They gain a +4 bonus when making saving throws against snake toxin, and a +2 bonus on saving throws against poison from other types of reptiles. The +2 bonus also applies to the poison of a medusa, naga, and other creatures possessing distinctly snake-like features.
Minor Toxic Transform (Su): At 4th level a hooded healer can convert snake toxins into a beneficial potion. Once a day, the venom coaxed from a single Medium or larger viper snake, when mixed with a flask of holy water, can be transformed into a potion of cure moderate wounds cast at the hooded healer class level. There is no XP cost for creating this potion. However the potion is much less resilient than a normal magic potion and must be consumed within a three day period to be effective.
Poison Immunity (Su): At 5th level a hooded healer becomes immune to the venom of all snakes. She gains a +4 bonus to saving throws against poison from reptiles, as well as medusa, naga, and other creatures possessing distinctly snake-like traits.
Major Toxic Transform (Su): At 6th level a hooded healer can produce a more potent healing potion. The toxic transform now produces a potion of cure critical wounds cast at the hooded healer class level. There is no XP cost for creating this potion. However the potion is much less resilient than a normal magic potion and must be consumed within a three day period to be effective.
Table: Hooded Healer
Base
Class Attack Fort Ref Will
Level Bonus Save Save Save Special
1st +0 +2 +0 +2 Treat snake wounds, subdual
2nd +1 +3 +0 +3 Serpent empathy, sleep healing 1
3rd +1 +3 +1 +3 Poison resistance
4th +2 +4 +1 +4 Minor toxic transform
5th +2 +4 +1 +4 Poison immunity, sleep healing 2
6th +3 +5 +2 +5 Major toxic transform
At each level the hooded healer also gains spells per day as +1 level of existing class. (Not shown above.)
Hooded Healer
These itinerant priests of La'ahl are blessed with supernatural abilities that allows them to magiacally manipulate the toxins produced by snakes, changing what would otherwise be a poison into a mixture with beneficial qualities. They emply this power of the serpent for healing the injured and sick, travelling from village to village and cure what lies beyond the abilities of the local cleric. They stay only long enough to heal the most seriously ill or injured, before moving to the next settlement. While many have some fear of the supernatural serpent powers of hooded healers, they are widely respected and welcomed where they journey.
Hooded healers are noted for their heavy, hooded green robes, in which they can carry their serpent pets and healing supplies. They are mediocre combatants at best, and favor the use of diplomacy or subdual techniques to resolve conflict. Many are skilled at the stealthy arts of staying concealed in order to avoid the ignorant few who fear them enough to lay an ambush or seek to hunt them down as witches.
Hit Die: d4
Requirements
To qualify to become a hooded healer, a character must fulfill all the following criteria.
Alignment: Any Good.
Heal: 9 ranks.
Spells: Ability to cast delay poison as a divine spell.
Feats: Great Fortitude.
Patron: La'ahl.
Special: Must have survived the bite of a poisonous snake without the aid of magical healing.
Class Skills
The hooded healer's class skills (and the key ability for each skill) are Concentration (Con), Craft (Int), Diplomacy (Cha), Disguise (Cha), Handle Animal (Cha), Heal (Wis), Hide (Dex), Knowledge (nature) (Int), Knowledge (religion) (Int), Move Silently (Dex), Profession (Wis), and Spellcraft (Int).
Skill Points at Each Level: 6 + Int modifier.
Class Features
All of the following are class features of the hooded healers.
Weapons and Armor Proficiency: Hooded healers do not gain any additional proficiency with weapons, armor, or shields.
Spells per Day: When a new hooded healer level is gained, the character gains new spells per day as if she has also gained a level in a divine spellcasting class she belonged to before adding the prestige class. She does not, however, gain any other benefit a character of that class would have gained, except for an increased effective level of spellcasting. This essentially means that she adds the level of hooded healer to the level of whatever other divine spellcasting class the character has, then determines spells per day and caster level accordingly. If a character has more than one divine spellcasting class before becoming a hooded healer, she must decide to which class she adds the new level for purposes of determining spells per day.
Subdual (Ex): A hooded healer is instructed in special techniques to quell a conflict without killing her opponent. When employing a melee weapon that normally deals lethal damage to instead deal nonlethal damage, she only suffers a M-^V1 penalty on her attack rolls. She also gains Exotic Weapon Proficiency with the net as a bonus feat.
Treat Snake Wounds (Ex): A hooded healer gains a +2 competence bonus to her Heal skill when treating the wounds and poisonous effects dealt by a snake. If she has ranks in Craft (alchemy), she also gains a +2 competence bonus to her Craft (alchemy) skill when creating antitoxins.
Serpent Empathy (Ex): At 2nd level, a hooded healer gains the wild empathy ability of Druids when dealing with snakes. She can use the same ability when interacting with other reptiles, but has a -4 adjustment to the wild empathy check. If the hooded healer has class levels as a druid or ranger, she can combine her class levels when making the wild empathy check against snakes or other reptiles.
Sleep Healing (Su): Upon reaching 2nd level, a hooded healer begins to recover from wounds at a supernaturally accelerated rate. So long as she has at least 1 hit point remaining, she heals 1 point of damage every hour she is asleep. This is in addition to normal healing gained while resting, and due to the use of the Heal skill.
At 5th level, the rate of sleep healing increases to 2 points of damage healed each full hour while asleep.
Poison Resistance (Su): Starting at 3rd level, hooded healers become especially resistant to the toxin in a snake bite. They gain a +4 bonus when making saving throws against snake toxin, and a +2 bonus on saving throws against poison from other types of reptiles. The +2 bonus also applies to the poison of a medusa, naga, and other creatures possessing distinctly snake-like features.
Minor Toxic Transform (Su): At 4th level a hooded healer can convert snake toxins into a beneficial potion. Once a day, the venom coaxed from a single Medium or larger viper snake, when mixed with a flask of holy water, can be transformed into a potion of cure moderate wounds cast at the hooded healer class level. There is no XP cost for creating this potion. However the potion is much less resilient than a normal magic potion and must be consumed within a three day period to be effective.
Poison Immunity (Su): At 5th level a hooded healer becomes immune to the venom of all snakes. She gains a +4 bonus to saving throws against poison from reptiles, as well as medusa, naga, and other creatures possessing distinctly snake-like traits.
Major Toxic Transform (Su): At 6th level a hooded healer can produce a more potent healing potion. The toxic transform now produces a potion of cure critical wounds cast at the hooded healer class level. There is no XP cost for creating this potion. However the potion is much less resilient than a normal magic potion and must be consumed within a three day period to be effective.
Table: Hooded Healer
Base
Class Attack Fort Ref Will
Level Bonus Save Save Save Special
1st +0 +2 +0 +2 Treat snake wounds, subdual
2nd +1 +3 +0 +3 Serpent empathy, sleep healing 1
3rd +1 +3 +1 +3 Poison resistance
4th +2 +4 +1 +4 Minor toxic transform
5th +2 +4 +1 +4 Poison immunity, sleep healing 2
6th +3 +5 +2 +5 Major toxic transform
At each level the hooded healer also gains spells per day as +1 level of existing class. (Not shown above.)
