The following is Open Game Content from a 3PP Source
SPEAR OF THE DAWN-GODDESS
You can make a devastating charge, attacking all enemies along your path.
Prerequisite: Sojutsu combat style, base attack bonus +12.
Benefit: As a full attack action, you can make a charge attack, moving up to twice your base movement rate. You make a single attack roll at your highest attack bonus against any enemies along your path (which must be in a straight line). If any attack succeeds by 10 or more the enemy struck must make a Dexterity or Acrobatics check (DC is equal to your attack roll) or be knocked prone. After performing this attack, you may make only one attack the following round.