--白の仲裁
local s,id,o=GetID()
function s.initial_effect(c)
	--activate
	local e0=Effect.CreateEffect(c)
	e0:SetType(EFFECT_TYPE_ACTIVATE)
	e0:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e0)
	--change a target into a tuner
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_QUICK_O)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetRange(LOCATION_SZONE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.tg)
	e1:SetOperation(s.op)
	c:RegisterEffect(e1)
	--defense position
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_POSITION)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_ATTACK_ANNOUNCE)
	e2:SetRange(LOCATION_SZONE)
	e2:SetCountLimit(1,id+o)
	e2:SetCondition(s.dfcon)
	e2:SetCost(s.dfcost)
	e2:SetTarget(s.dftg)
	e2:SetOperation(s.dfop)
	c:RegisterEffect(e2)
	--spsummon
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,2))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_DESTROYED)
	e3:SetRange(LOCATION_SZONE)
	e3:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DAMAGE_CAL+EFFECT_FLAG_DELAY)
	e3:SetCountLimit(1,id+o*2)
	e3:SetCondition(s.spcon1)
	e3:SetCost(s.spcost)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
	local e4=e3:Clone()
	e4:SetCode(EVENT_TO_GRAVE)
	e4:SetProperty(EFFECT_FLAG_DELAY)
	e4:SetCondition(s.spcon2)
	c:RegisterEffect(e4)
end
function s.filter(c)
	return c:IsRace(RACE_FISH) and c:IsFaceup() and not c:IsType(TYPE_TUNER)
end
function s.tg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_MZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TARGET)
	Duel.SelectTarget(tp,s.filter,tp,LOCATION_MZONE,0,1,1,nil)
end
function s.op(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and tc:IsFaceup() then
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_ADD_TYPE)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetReset(RESET_EVENT+RESETS_STANDARD+RESET_PHASE+PHASE_END)
		e1:SetValue(TYPE_TUNER)
		tc:RegisterEffect(e1)
	end
end
function s.dfcon(e,tp,eg,ep,ev,re,r,rp)
	return tp~=Duel.GetTurnPlayer()
end
function s.dfilter(c)
	return c:IsRace(RACE_FISH) and c:IsDiscardable(REASON_COST+REASON_DISCARD)
end
function s.dfcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.dfilter,tp,LOCATION_HAND,0,1,nil) end
	Duel.DiscardHand(tp,s.dfilter,1,1,REASON_COST+REASON_DISCARD,nil)
end
function s.posfilter(c)
	return c:IsPosition(POS_FACEUP_ATTACK) and c:IsCanChangePosition() 
end
function s.dftg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.posfilter,tp,0,LOCATION_MZONE,1,nil) end
	local g=Duel.GetMatchingGroup(s.posfilter,tp,0,LOCATION_MZONE,nil)
	Duel.SetOperationInfo(0,CATEGORY_POSITION,g,g:GetCount(),0,0)
end
function s.dfop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(s.posfilter,tp,0,LOCATION_MZONE,nil)
	if #g>0 then
		Duel.ChangePosition(g,POS_FACEUP_DEFENSE)
	end
end
function s.cfilter(c,tp)
	return c:IsPreviousControler(tp) and c:GetPreviousRaceOnField()&RACE_FISH~=0 and c:IsReason(REASON_BATTLE)
end
function s.cfilter2(c,tp)
	return not c:IsReason(REASON_BATTLE) and c:IsPreviousControler(tp) and s.check(c)
end
function s.check(c)
	if c:IsPreviousLocation(LOCATION_MZONE) then
		return c:GetPreviousRaceOnField()&RACE_FISH~=0 and c:IsRace(RACE_FISH)
	else
		return c:IsRace(RACE_FISH) and not c:IsPreviousLocation(LOCATION_ONFIELD)
	end
end
function s.spcon1(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.cfilter,1,nil,tp)
end
function s.spcon2(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.cfilter2,1,nil,tp)
end
function s.spcost(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return c:IsAbleToGraveAsCost() and c:IsStatus(STATUS_EFFECT_ENABLED) end
	Duel.SendtoGrave(c,REASON_COST)
end
function s.spfilter(c,e,tp)
	return c:IsRace(RACE_FISH) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_GRAVE,0,1,nil,e,tp) and Duel.GetLocationCount(tp,LOCATION_MZONE)>0 end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_GRAVE)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.spfilter),tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	if g:GetCount()>0 then
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
end