--アーマー・カッパー
function c50789693.initial_effect(c)
	--xyz summon
	aux.AddXyzProcedure(c,aux.XyzFilterFunction(c,2),2)
	c:EnableReviveLimit()
	--attack up
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_ATKCHANGE+CATEGORY_DEFCHANGE)
	e1:SetDescription(aux.Stringid(50789693,0))
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetCountLimit(1)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCost(c50789693.adcost)
	e1:SetOperation(c50789693.adop)
	c:RegisterEffect(e1)
	--
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(50789693,1))
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetCountLimit(1)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCode(EVENT_FREE_CHAIN)
	e2:SetHintTiming(TIMING_BATTLE_PHASE)
	e2:SetCondition(c50789693.btcon)
	e2:SetCost(c50789693.btcost)
	e2:SetOperation(c50789693.btop)
	c:RegisterEffect(e2)
end
function c50789693.adcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():CheckRemoveOverlayCard(tp,1,REASON_COST) end
	e:GetHandler():RemoveOverlayCard(tp,1,1,REASON_COST)
end
function c50789693.adop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) and c:IsFaceup() then
		local opt=Duel.SelectOption(tp,aux.Stringid(50789693,2),aux.Stringid(50789693,3))
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetProperty(EFFECT_FLAG_COPY_INHERIT)
		if opt==0 then
			e1:SetCode(EFFECT_UPDATE_ATTACK)
		else
			e1:SetCode(EFFECT_UPDATE_DEFENCE)
		end
		e1:SetValue(1000)
		e1:SetReset(RESET_EVENT+0x1ff0000)
		c:RegisterEffect(e1)
	end
end
function c50789693.btcon(e,tp,eg,ep,ev,re,r,rp)
	local bt=Duel.GetAttacker()
	if bt and bt:IsControler(tp) then return true end
	bt=Duel.GetAttackTarget()
	return bt and bt:IsControler(tp)
end
function c50789693.btcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetFlagEffect(tp,50789693)==0
		and Duel.IsExistingMatchingCard(Card.IsDiscardable,tp,LOCATION_HAND,0,1,nil) end
	Duel.DiscardHand(tp,Card.IsDiscardable,1,1,REASON_COST+REASON_DISCARD)
	Duel.RegisterFlagEffect(tp,50789693,0,0,0)
end
function c50789693.btop(e,tp,eg,ep,ev,re,r,rp)
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_AVOID_BATTLE_DAMAGE)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetTargetRange(1,0)
	e1:SetValue(1)
	e1:SetReset(RESET_PHASE+PHASE_END)
	Duel.RegisterEffect(e1,tp)
	local e2=Effect.CreateEffect(e:GetHandler())
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_INDESTRUCTABLE_BATTLE)
	e2:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
	e2:SetTargetRange(LOCATION_MZONE,0)
	e2:SetReset(RESET_PHASE+PHASE_END)
	e2:SetValue(1)
	Duel.RegisterEffect(e2,tp)
end
