Reflexive Recovery (3.5e Feat)
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Reflexive Recovery [General]
Your amazing reflexes allow you to recover almost instantly from being knocked prone.
Benefit: A character with this feat may make a Reflex save as an immediate action to avoid being rendered prone from a successful trip, overrun, or other effect. The DC for this save is equal to the Strength roll your opponent made to knock you down. If you were knocked down by a spell, maneuver, or similar ability, the DC is the same as a save against that ability. You gain no size modifier to this save attempt.
Normal: Characters who are knocked prone must stand as a move action on their next turn.
Special: A fighter may select this feat as one of his fighter bonus feats.