--ブルーアイズ・ビジョン・ドラゴン
--Blue-Eyes Vision Dragon
--scripted by YoshiDuels
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE+EFFECT_FLAG_SPSUM_PARAM)
	e1:SetRange(LOCATION_HAND)
	e1:SetTargetRange(POS_FACEUP_DEFENSE,0)
	e1:SetCondition(s.spcon)
	c:RegisterEffect(e1)
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCountLimit(1)
	e2:SetCost(s.cost)
	e2:SetTarget(s.target)
	e2:SetOperation(s.operation)
	c:RegisterEffect(e2)
end
function s.filter(c)
	return c:IsFaceup() and c:IsLevelAbove(8) and c:IsRace(RACE_DRAGON)
end
function s.spcon(e,c)
	if c==nil then return true end
	return Duel.GetLocationCount(c:GetControler(),LOCATION_MZONE)>0
		and	Duel.IsExistingMatchingCard(s.filter,c:GetControler(),LOCATION_MZONE,0,1,nil)
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDiscardDeckAsCost(tp,1) end
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return not c:IsCode(CARD_BLUEEYES_W_DRAGON) end
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	-- Requirement
	if Duel.DiscardDeck(tp,1,REASON_COST)<1 then return end
	--Effect
	local c=e:GetHandler()
	--Name becomes "Blue-Eyes White Dragon"
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e1:SetCode(EFFECT_CHANGE_CODE)
	e1:SetValue(CARD_BLUEEYES_W_DRAGON)
	e1:SetReset(RESETS_STANDARD_PHASE_END)
	c:RegisterEffect(e1)
	--Treat as 2 materials for the summon of "Blue-Eyes Ultimate Dragon"
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e2:SetCode(id)
	e2:SetValue(2)
	e2:SetReset(RESETS_STANDARD_PHASE_END)
	c:RegisterEffect(e2)
end