Arena Specialist is an . It is available to martial classes with an Intelligence of 13. [Dr368:59] It modifies the following powers: * Circling Strike (Ranger): Before and after the attack, your beast companion can shift 1 square. * Disheartening Strike (Rogue): If you hit and are trained in Intimidate, one enemy adjacent to your target takes a -2 penalty to attack rolls until end of your next turn. * Opening shove (Warlord): If the ally shifts and ends its movement in a space adjacent to you or your target, that allw gains a +1 power bonus to AC until the end of your next turn. * Reaping strike (Fighter): If you miss with this exploit, you can deal damage to the target or one enemy adjacent to the target.