Spells added to TFS 1.4 not working in OTClient

[taytorTots1242]

I've added a spell to the spells.xml file

<instant group="attack" spellid="300" name="Test Icenado" words="frigo nado" level="1" mana="1" premium="0" selftarget="1" cooldown="40000" groupcooldown="4000" needlearn="0" script="attack/test_icenado.lua">
        <vocation name="Sorcerer" />
        <vocation name="Druid" />
        <vocation name="Paladin" />
        <vocation name="Knight" />
        <vocation name="Master Sorcerer" />
        <vocation name="Elder Druid" />
        <vocation name="Royal Paladin" />
        <vocation name="Elite Knight" />
    </instant>

Created the spell file

local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_ICEDAMAGE)
combat:setParameter(COMBAT_PARAM_EFFECT, CONST_ME_ICETORNADO)
combat:setArea(createCombatArea(AREA_CIRCLE6X6))

function onGetFormulaValues(player, level, magicLevel)
    local min = (level / 5) + (magicLevel * 5.5) + 25
    local max = (level / 5) + (magicLevel * 11) + 50
    return -min, -max
end

combat:setCallback(CALLBACK_PARAM_LEVELMAGICVALUE, "onGetFormulaValues")

function onCastSpell(creature, variant)
    return combat:execute(creature, variant)
end

Added the spell into the spells.lua file in OTClient

    ['Test Icenado'] =           {id = 300, words = 'frigo nado',  exhaustion = 10, premium = false,  type = 'Instant', icon = 'eternalwinter',          mana = 1,   level = 1, soul = 0, group = {[1] = 2000},               vocations = {1, 2, 3, 4, 5, 6, 7, 8}},

And the spell icons object

  ['testicenado']                = {300, 301},

The spell shows up in the spell book, however when I try casting the spell it seems like it just processes it as a normal chat message, and it doesn't attempt to cast the spell. There are also no errors in either the client or the server. I feel like I'm missing a file I need to update but everything I have found online only has mentioned the files above. I've also rebuilt both solutions just to be safe.

If anyone has any links or suggestions that would be amazing, thanks