--ディフェンシブ・タクティクス
--Defensive Tactics
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetHintTiming(0,TIMING_MAIN_END)
	e1:SetCondition(s.condition)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
s.listed_series={SET_GLADIATOR}
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsSetCard,SET_GLADIATOR),tp,LOCATION_MZONE,0,1,nil)
end
function s.activate(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+EFFECT_FLAG_CLIENT_HINT)
	e1:SetDescription(aux.Stringid(id,1))
	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:SetTargetRange(LOCATION_MZONE,0)
	e2:SetReset(RESET_PHASE|PHASE_END)
	e2:SetValue(1)
	Duel.RegisterEffect(e2,tp)
	if e:GetHandler():IsRelateToEffect(e) then
		e:GetHandler():CancelToGrave()
		Duel.SendtoDeck(e:GetHandler(),nil,SEQ_DECKBOTTOM,REASON_EFFECT)
	end
end