Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Cannot be Special Summoned, except by the effect of a Wyrm monster. During your Main Phase: You can reduce this card's Level by 1, and if you do, Special Summon 1 "Mini Mare Mare Token" (Wyrm/WATER/Level 1/ATK 300/DEF 200). You can only use this effect of "Mare Mare" up to thrice per turn.
--タツノオトシオヤ
--Mare Mare
local s,id=GetID()
function s.initial_effect(c)
	--spsummon condition
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e1:SetCode(EFFECT_SPSUMMON_CONDITION)
	e1:SetValue(s.splimit)
	c:RegisterEffect(e1)
	--token
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON+CATEGORY_TOKEN)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCountLimit(3,id)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
end
s.listed_names={54537489}
function s.splimit(e,se,sp,st)
	return se:IsMonsterEffect() and se:GetHandler():IsRace(RACE_WYRM)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():GetLevel()>1 and Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsPlayerCanSpecialSummonMonster(tp,id+1,0,TYPES_TOKEN,300,200,1,RACE_WYRM,ATTRIBUTE_WATER) end
	Duel.SetOperationInfo(0,CATEGORY_TOKEN,nil,1,0,0)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if not c:IsFacedown() and c:IsRelateToEffect(e) and (not c:IsImmuneToEffect(e)) and c:UpdateLevel(-1)==-1 
		and Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsPlayerCanSpecialSummonMonster(tp,id+1,0,TYPES_TOKEN,300,200,1,RACE_WYRM,ATTRIBUTE_WATER) then
		local token=Duel.CreateToken(tp,id+1)
		Duel.SpecialSummon(token,0,tp,tp,false,false,POS_FACEUP)
	end
end