Advanced Fiendish Summoning (D20 Modern Feat)
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Advanced Fiendish Summoning [Special]
Prerequisite: Diabolist 2nd level, Research 9 ranks
Benefit: Increase the maximum CR you can safely summon with the 'Summon Fiend' and 'Call Fiendish Servant' (if possessed) abilities by 2. Increase the maximum number of fiends you can summon at a time by 1.
Special: This feat can be taken multiple times, its effects stack.