Feeding Frenzy (3.5e Feat)
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 Feeding Frenzy [General]
You are very hungry.
Benefit: When a creature within 50 feet takes any damage, you begin raging as an immediate action. You may make a will save to negate (10 + damage dealt to creature), but this acts in all ways as your normal raging ability in addition to the following: You gain an extra +2 bonus to Strength and Constitution, and a 10 foot increase to speed.
Special: If you begin raging before any damage is dealt to any creature within 50 feet, you do not gain the bonuses offered by this feat. You must be able to perceive the creature's injury through any means (Sight, scent, hearing etc.).