--Synchro Drive
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:SetOperation(s.activate)
	c:RegisterEffect(e1)
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_INDESTRUCTABLE_BATTLE)
	e1:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
	e1:SetTargetRange(LOCATION_MZONE,0)
	e1:SetTarget(aux.TargetBoolFunction(Card.IsType,TYPE_SYNCHRO))
	e1:SetReset(RESET_PHASE+PHASE_END)
	e1:SetValue(1)
	Duel.RegisterEffect(e1,tp)
	local e2=e1:Clone()
	e2:SetCode(EFFECT_INDESTRUCTABLE_EFFECT)
	Duel.RegisterEffect(e2,tp)
	local e3=Effect.CreateEffect(e:GetHandler())
	e3:SetType(EFFECT_TYPE_FIELD)
	e3:SetCode(EFFECT_CHANGE_DAMAGE)
	e3:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e3:SetTargetRange(1,1)
	e3:SetValue(s.damval)
	e3:SetReset(RESET_PHASE+PHASE_END)
	Duel.RegisterEffect(e3,tp)
end
function s.damval(e,re,val,r,rp,rc)
	if (r&REASON_BATTLE)~=0 then
		return val/2
	else
		return val
	end
end