Benefit
A Mother of Monsters gains the ability to extend a single summon monster
or summon nature's ally spell by enduring an 8 hour ritual in which she
physically gives birth to the creature to be summoned. During the first seven
hours, she must consume seven days worth of food and water, and is treated as
Sickened. Over the course of the eighth hour, during which time she is treated
as Nauseated, she delivers the monster, suffering 2 pts. of Constitution damage,
and becoming Exhausted.
The 'newborn' creature is birthed as a Tiny version of its adult form, and grows over the next 15 minutes to its full size. Any creature from the appropriate summon monster or summon nature's ally list can be birthed in this manner, so long as it is an animal or vermin with the fiendish template (even in the case of a Druid using the summon nature's ally list, the animal or vermin birthed will have the fiendish template), and will always be chaotic evil, regardless of the priest's alignment.
This ability is gained at 4th level, and at that time, the Cleric (or Druid) can only access the summon monster I or summon nature's ally I lists, as appropriate. At 6th level, the priest can birth a fiendish template animal or vermin from the summon monster II or summon nature's ally II list, as appropriate. At 10th level, the Mother can use the summon monster III or summon nature's ally III list, at 14th level, she can use the summon monster IV or summon nature's ally IV list, and at 18th level, she gains the ability to birth a creature from the summon monster V or summon nature's ally V list.
Unlike a traditionally summoned monster, the creature shares the benefits of an arcane bond with the summoning Cleric (or Druid), being treated as a Familiar in many respects (and using the Mother's levels in whatever divine spellcasting class allowed her to qualify for this feat in place of Wizard levels to determine the benefits). The fiendish beast gains any Intelligence score (unless it already has a higher intelligence) due a Familiar at that level, the Natural Armor bonus and abilities such as Empathy, Share Spells, Evasion, Speak with creatures of its own kind and Speak with master. It retains its own hit dice, hit points, saving throws and skills, unlike a true Familiar. Additionally, the effect lasts until the creature is dismissed or destroyed, up to a maximum of one month.
Due to the intense nature of the bond between the 'Mother' and the fiend, if it is slain, she immediately suffers 2 pts of Constitution damage and is exhausted. If the Lamashtan priest is slain, the fiend loses any familiar benefits it had acquired, but is otherwise unharmed, and does not have to return to its native plane at the end of its original month of service.
A Cleric (or Druid) with this alternate ability can only have one such fiendish creature birthed at a time, and cannot begin the ritual to birth a new creature until the old one is dismissed or slain.
Special: This feat may be taken by a male worshipper of Lamashtu, but he will have to use some form of shapechanging magic that allows him to assume a female form for at least 8 hours to make use of it.