A character with this feat can attempt a special knockdown attempt, which does not cause damage but does not provoke an attack of opportunity. A character may only knock down creatures that are one size larger than itself or less. The attacker makes a d20 roll modified by his strength bonus, and the difference between his creature size and the target creature size times 4. The defender makes a d20 roll modified by the better of his strength and dexterity bonus. If the attacker meets or beats the defender's roll, the defender is knocked down. Prone characters cannot attack. Characters receive a +4 bonus to attack prone opponents in melee, but a -4 penalty to attack them with a ranged weapon.
Special: Monks receive this feat for free at level 6. A Wolf animal companion will receive Knockdown for free at 1st level.
- A successful Knockdown disrupts spellcasting.
- Knockdown requires a successful melee touch attack to be made.
- Knockdown has a two-round cooldown after each attempt.
- The check for the knockdown attempt is not modified by spells such as Enlarge Person and Reduce Person because these have no effect on the size modifier.
- It is most effective against a target that has a low dexterity and strength - commonly wizards and sorcerers, although bard and cleric type classes may not have a great deal of those either. However, most spell casters have defensive spells that protect against this feat.
- As a note, this obviously is most useful in a party situation, because if there are allies attacking the target, they gain a bonuses to attack them for one round, and the target cannot defend itself (it loses, for instance, combat expertise bonuses).
- Knockdown can be blocked by mirror image,
though a knockdown attempt is an automatic hit and will remove one image per attempt.
- Knockdown attempts can be parried.
- The spells foundation of stone and storm avatar confer immunity to knockdown.
It dealt damage, but was an attack with -4 to hit, and had the same effects applied. It also was countered by the now removed discipline skill, since the attack roll also had to beat the targets discipline.