local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_MAGIC_BLUE)
local area = createCombatArea(AREA_SQUARE1X1)
setCombatArea(combat, area)
function onTargetCreature(cid, target) return doChallengeCreature(cid, target) end
setCombatCallback(combat, CALLBACK_PARAM_TARGETCREATURE, "onTargetCreature")
function onCastSpell(cid, var)
return doCombat(cid, combat, var)
end