Try this, I don't know if this will work on your version, but...
local combat0 = createCombatObject()
setCombatParam(combat0, COMBAT_PARAM_TYPE, COMBAT_ICEDAMAGE)
setCombatParam(combat0, COMBAT_PARAM_EFFECT, CONST_ME_ICEATTACK)
setCombatParam(combat0, COMBAT_PARAM_DISTANCEEFFECT...