My ice strike:
local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_ICEDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_ICEAREA)
setCombatFormula(combat, COMBAT_FORMULA_LEVELMAGIC, -0.25, -0, -0.55, 0)
function onCastSpell(cid, var)
if...