--Nightknight Cassiopeia
local m=88888803
local cm=c88888803

function cm.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_HAND)
	e1:SetCountLimit(1,m)
	e1:SetCost(cm.spcost)
	e1:SetTarget(cm.sptg)
	e1:SetOperation(cm.spop)
	c:RegisterEffect(e1)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e2:SetCode(EVENT_TO_GRAVE)
	e2:SetOperation(cm.regop)
	c:RegisterEffect(e2)   
end

function cm.costfilter(c)
	return c:IsDiscardable() and c:IsSetCard(0xff9a)
end

function cm.spcost(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return not c:IsPublic()
		and Duel.IsExistingMatchingCard(cm.costfilter,tp,LOCATION_HAND,0,1,c) end
	Duel.DiscardHand(tp,cm.costfilter,1,1,REASON_COST+REASON_DISCARD,c)
end

function cm.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and e:GetHandler():IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP_DEFENSE) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),1,0,0)
end

function cm.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) then
		Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)
	end
end

--------------------
--GRAVEYARD EFFECT--
--------------------

function cm.regop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsLocation(LOCATION_GRAVE) then
		local e1=Effect.CreateEffect(c)
		e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
		e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
		e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
		e1:SetRange(LOCATION_GRAVE)
		e1:SetCountLimit(1,m)
		e1:SetCode(EVENT_PHASE+PHASE_STANDBY)
		e1:SetCondition(cm.regspcon)
		e1:SetTarget(cm.regsptg)
		e1:SetOperation(cm.regspop)
		e1:SetReset(RESET_EVENT+RESETS_STANDARD+RESET_PHASE+PHASE_STANDBY+RESET_SELF_TURN,1)
		c:RegisterEffect(e1)
		local e2=Effect.CreateEffect(c)
		e2:SetType(EFFECT_TYPE_SINGLE)
		e2:SetCode(EFFECT_LEAVE_FIELD_REDIRECT)
		e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e2:SetReset(RESET_EVENT+RESETS_REDIRECT)
		e2:SetValue(LOCATION_REMOVED)
		c:RegisterEffect(e2,true)
	end
end

function cm.regspcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetTurnPlayer()==tp
end

function cm.regspfilter(c,e,tp)
	return c:IsSetCard(0xff9a) and c==e:GetHandler() and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end

function cm.regsptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and cm.regspfilter(chkc,e,tp) end
	if chk==0 then return true end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=e:GetHandler()
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end

function cm.regspop(e,tp,eg,ep,ev,re,r,rp)
	local tc=e:GetHandler()
	if tc and tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end