Generation Casting

 
Prerequisite(s): Knowledge (Nature) 10+ ranks, 2 other Metamagic Feats (See main index)
 
Benefit: The spells used in conjunction with this feat become so powerful it will pass down through the generations of the target creature. Children of the affected creatures automatically are affected by the spell when they are born, with no saving throw. Only spells with permanent effects can be modified in this way. Spells modified by this feat occupy one spell slot higher for each generation you wish to affect.
 
Source: Mongoose Ultimate Feats