Grapples can be initiated by the following: Wrestling, Martial Holds, Pinning, and Grabbing.
Grappled creatures have the following options:
- Respond with unarmed attack
- Attack with a size S weapon
- Escape the grapple (depends on how grappled)
While grappling, the grappled cannot move, and both individuals are in the same space, and no squares are threatened (except for specific circumstances like Ropers, which can grapple opponents up to 10 squares away)