Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When a monster(s) is destroyed by battle and sent to your GY: Discard your entire hand (min.1), then target 1 of those monsters; Special Summon it, and if you do, it gains 800 ATK.
--命の綱
--Rope of Life
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_BATTLE_DESTROYED)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then
		local g=Duel.GetFieldGroup(tp,LOCATION_HAND,0)
		g:RemoveCard(e:GetHandler())
		return #g>0 and g:FilterCount(Card.IsDiscardable,nil)==#g
	end
	local g=Duel.GetFieldGroup(tp,LOCATION_HAND,0)
	Duel.SendtoGrave(g,REASON_COST|REASON_DISCARD)
end
function s.filter(c,e,tp)
	return c:IsLocation(LOCATION_GRAVE) and c:IsControler(tp) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
		and c:IsCanBeEffectTarget(e)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return eg:IsContains(chkc) and s.filter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and eg and eg:IsExists(s.filter,1,nil,e,tp) end
	local g=eg:Filter(s.filter,nil,e,tp)
	Duel.SetTargetCard(g)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,LOCATION_GRAVE)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) and Duel.SpecialSummonStep(tc,0,tp,tp,false,false,POS_FACEUP) then
		--increase ATK
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetValue(800)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		tc:RegisterEffect(e1)
	end
	Duel.SpecialSummonComplete()
end