Type: Monstrous
Source: Savage Species
If you have two or more heads, you can cast more spells than usual in a round.
Prerequisite: Dex 15, Int 15, two or more heads, Improved Two-Weapon Fighting, Multiattack, Quicken Spell, Two-Weapon Fighting.
Benefit: As a full-round action, you can cast one additional spell (or use a spell-like ability in combination with a spell or another spell-like ability) each round. Each spell used in this way must have a casting time of 1 action; a spell-like ability must also take no more than a standard action to use. Using this feat provokes an attack of opportunity. If your concentration is interrupted during this simultaneous casting or spell-like ability use, whether by taking damage or by some other means, a Concentration check is required for each spell or spell-like ability. Failing either Concentration check negates both spells or spell-like abilities.
You can also use one head to cast a spell or use a spell-like ability while another head activates a head-based special attack, such as a breath weapon or an eye ray.
Special: You still cannot exceed the limit of one quickened spell per round (assuming you also have the Quicken Spell feat) when using this feat.
Normal: Without this feat, you can cast only one spell per round and cannot combine spellcasting with other actions.