Swarm Summoner (3.5e Feat)
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Swarm Summoner [General]
You can summon hordes of monsters.
Prerequisite: Spell Focus (Conjuration), ability to cast a summoning spell or spell-like ability.
Benefit: Whenever you cast a summoning spell to summon 1d3 creatures of 1 level lower, you instead summon 1d4+1. Whenever you cast a summoning spell to summon 1d4+1 creatures of 2 levels lower, you instead summon 2d4.
Special: A wizard may select this feat as one of his wizard bonus feats.