Grapple
Only Humanoid creatures can grapple or be grappled, all other creatures simply attack to the best of their ability as circumstances dictate and their non-Humanoid anatomy makes it impractical or impossible to effectively grapple them. Grappling can be effective against mundane Humanoids but can be deadly against magical or extraordinary ones.
As a full round action, a Humanoid creature can attempt to grapple a single foe. If the creature initiating the grapple does not have Improved Grapple, grab, or a similar ability, initiating a grapple provokes an attack of opportunity from the target. Humanoid creatures without two free hands attempting to grapple a foe take a –4 penalty on the combat maneuver roll. If successful, both gain the grappled condition (see below). Since grappling is an intimate form of combat creatures must be adjacent to each other before the initial combat maneuver roll is made, creatures cannot grapple at a distance even with reach.
Moving while grappling: Grappling creatures cannot move under their own power by mundane means (see below for Extraordinary and Supernatural abilities). Grappling creatures may be moved by other creatures or effects provided the total weight of both grappling creatures meets any carrying or weight requirements necessary.
Tie Up: During a grapple a creature cannot be tied up unless it has already submitted. Tying up a creature should take place outside of combat.
Damage while grappling: As a full round action during a grapple a creature can choose to inflict damage to their target with a successful combat maneuver check. This damage is equal to their unarmed strike as non lethal damage. A natural attack or an attack made with armor spikes or a light or one-handed weapon can be either lethal or nonlethal. If a creature has a high enough base attack bonus to incur iterative attacks it can apply a +1 damage bonus for each iterative attack it has to the damage dealt this round. So a creature with a base attack of: (+11/+6/+1) would do an additional 2 points of damage to its target with a successful combat maneuver check. Iterative attacks do not allow additional combat maneuver checks during a grapple.
Escape a grapple: As a full round action a creature can choose to escape a grapple with an Escape Artist check (with a DC equal to the opponent's CMD) or a combat maneuver check. If a creature has a high enough base attack bonus to incur iterative attacks it can apply a +1 bonus for each iterative attack it has to this check. So a creature with a base attack of: (+11/+6/+1) would gain a +2 bonus. Iterative attacks do not allow additional combat maneuver checks to escape a grapple.
Escape a pin: As a full round action a creature can choose to escape a pin with an Escape Artist check (with a DC equal to the opponent's CMD) or a combat maneuver check. If a creature has a high enough base attack bonus to incur iterative attacks it can apply a +1 bonus for each iterative attack it has to this check. So a creature with a base attack of: (+11/+6/+1) would gain a +2 bonus. Iterative attacks do not allow additional combat maneuver checks to escape a pin. If the Escape Artist check (only) used to escape the pin exceeds the DC by 10 or more the creature can choose to escape the grapple immediately as well, otherwise the creature remains grappled.
Pin an opponent in a grapple: As a full round action during a grapple a creature can give its opponent the pinned condition (see below) with a successful combat maneuver roll. A pinning creature is not considered pinned. Iterative attacks do not allow additional pin attempts during a grapple.
Submit in a grapple: As a free action a creature can submit during a grapple. Once a creature submits it forfeits any other actions that round except potentially movement (see below). If both creatures submit on their respective turns the grapple ends. If a creatures submission ends the grapple that creature may act normally after the submission.
Conditions
Grappled: A grappled creature is restrained by a creature, trap, or effect. A grappled creature retains full use of its Extraordinary Abilities (Ex) and Supernatural Abilities (Su). Grappled creatures cannot move (except as noted above) and take a –4 penalty to Dexterity. A grappled creature takes a –2 penalty on all attack rolls and combat maneuver checks, except those made to grapple or escape a grapple. In addition, grappled creatures can take no action that requires two hands to perform. A grappled character who attempts to cast a spell must make a concentration check (DC 10 + grappler's CMB + spell level), or lose the spell. Grappled creatures cannot make attacks of opportunity.
Pinned: A pinned creature retains full use of its Extraordinary Abilities (Ex) and Supernatural Abilities (Su). A pinned creature cannot move and is flat-footed (except as noted above). A pinned creature also takes an additional –4 penalty to his Armor Class. A pinned creature can always attempt to free itself, usually through a combat maneuver check or Escape Artist check. A pinned creature can take verbal and mental actions, but cannot cast any spells that require a somatic or material component. A pinned creature who attempts to cast a spell must make a concentration check (DC 10 + grappler's CMB + spell level) or lose the spell. Pinned is a more severe version of grappled, and their effects do not stack.
