Supreme Trip (3.5e Feat)
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 Supreme Trip [General]
By combining their tripping abilities and their mighty attacks, a tripper can throw an enemy to the ground so hard, it really hurts.
Benefit: When you trip an enemy using Knock-Down, you gain a free attack as though you hadn't used the Knock-Down attack. This works exactly like the Improved Trip ability, but it works with Knock-Down