Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
2 Normal Monsters Must be Fusion Summoned and cannot be Special Summoned by other ways. You can only control 1 "First of the Dragons". This card cannot be destroyed by battle, except by battle with a Normal Monster, and is unaffected by other monsters' effects.
--始祖竜ワイアーム
--First of the Dragons
local s,id=GetID()
function s.initial_effect(c)
	c:SetUniqueOnField(1,0,id)
	--fusion material
	c:EnableReviveLimit()
	Fusion.AddProcMixN(c,true,true,aux.FilterBoolFunctionEx(Card.IsType,TYPE_NORMAL),2)
	--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(aux.fuslimit)
	c:RegisterEffect(e1)
	--indes
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetCode(EFFECT_INDESTRUCTABLE_BATTLE)
	e2:SetValue(s.indval)
	c:RegisterEffect(e2)
	--immune
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_SINGLE)
	e3:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e3:SetRange(LOCATION_MZONE)
	e3:SetCode(EFFECT_IMMUNE_EFFECT)
	e3:SetValue(s.efilter)
	c:RegisterEffect(e3)
end
function s.indval(e,c)
	return not c:IsType(TYPE_NORMAL)
end
function s.efilter(e,te)
	return te:IsMonsterEffect() and te:GetOwner()~=e:GetOwner()
end