Solved Monster is not casting custom spell

[Caduceus]

I have tried to add a custom spell to a monster in 1.2, however, neither of these are working.

<attack script="monster/flam_wave.lua" interval="3000" chance="100"/>

<attack name="flam_wave" interval="3000" chance="50" radius="10" target="0" min="-600" max="-700"/>

I have the spell registered in spells.xml.

<instant name="flam_wave" words="flam wave" aggressive="1" blockwalls="1" needtarget="0" needlearn="1" script="monster/flam_wave.lua"/>

I had to edit the spell to:

for x, _ in ipairs(area) do
        combat[x]:setArea(createCombatArea(area[x]))
    end

     function executeCombat(p, i)
        if not p.creature then
            return false
        end
        p.combat[i]:execute(p.creature, p.var)
    end

   function onCastSpell(creature, var)
     local p = {creature = creature, var = var, combat = combat}
     local time_ = {1, 200, 400, 800, 1000, 1200}
     for t, _ in ipairs(time_) do
         addEvent(executeCombat, time_[t], p, t)
     end
     return true
end

from:

for x, _ in ipairs(area) do
        combat[x]:setArea(createCombatArea(area[x]))
    end

     function executeCombat(p, i)
        if not p.player then
            return false
        end
        if not p.player:isPlayer() then
             return false
        end
        p.combat[i]:execute(p.player, p.var)
    end

   function onCastSpell(player, var)
     local p = {player = player, var = var, combat = combat}
     local time_ = {1, 400, 800, 1200, 1600, 2000}
     for t, _ in ipairs(time_) do
         addEvent(executeCombat, time_[t], p, t)
     end
     return true
end