.lua spell script help

[Jester753]

I'm trying to make a spell for druids that summons a 3x3 area of jungle grass, and the grass slows targets. this is the code i have but it won't slow creatures or people.

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_DISTANCEEFFECT, CONST_ANI_FIRE)
setCombatParam(combat, COMBAT_PARAM_CREATEITEM, 2781)
setCombatParam(combat, COMBAT_PARAM_AGGRESSIVE, true)

local area = createCombatArea(AREA_SQUARE1X1)
setCombatArea(combat, area)

local speed = createConditionObject(CONDITION_PARALYZE)
setConditionParam(condition, CONDITION_PARAM_TICKS, 10000)
setConditionFormula(speed, -0.7, 56, -0.7, 56)
setCombatCondition(combat, speed)
setCombatArea(combat, area)

function onCastSpell(cid, var)
	return doCombat(cid, combat, var)
end

Thanks