Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
1 Tuner Synchro Monster + 1+ non-Tuner monsters Must be either Synchro Summoned, or Special Summoned from your Extra Deck by banishing 1 Tuner Synchro Monster and 1 "Black-Winged Dragon" from your face-up Monster Zone and/or GY. Each time your opponent activates a monster effect, place 1 Black Feather Counter on this card when that effect resolves, and if you do, inflict 700 damage to your opponent. During your opponent's turn (Quick Effect): You can Tribute this card with 4 or more Black Feather Counters on it; destroy all cards on the field. * The above text is unofficial and describes the card's functionality in the OCG.
--ブラックフェザー・アサルト・ドラゴン
--Black-Winged Assault Dragon
--scripted by Cybercatman
local s,id=GetID()
function s.initial_effect(c)
	c:EnableCounterPermit(COUNTER_FEATHER)
	--Synchro Summon procedure
	Synchro.AddProcedure(c,aux.FilterBoolFunctionEx(Card.IsType,TYPE_SYNCHRO),1,1,Synchro.NonTuner(nil),1,99)
	c:EnableReviveLimit()
	--Special Summoning condition
	local e0=Effect.CreateEffect(c)
	e0:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e0:SetType(EFFECT_TYPE_SINGLE)
	e0:SetCode(EFFECT_SPSUMMON_CONDITION)
	e0:SetValue(aux.synlimit)
	c:RegisterEffect(e0)
	--Special Summon procedure
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e1:SetRange(LOCATION_EXTRA)
	e1:SetCondition(s.spcon)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--Place counter and inflict damage
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_CONTINUOUS+EFFECT_TYPE_FIELD)
	e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e2:SetCode(EVENT_CHAINING)
	e2:SetRange(LOCATION_MZONE)
	e2:SetOperation(aux.chainreg)
	c:RegisterEffect(e2)
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_CONTINUOUS+EFFECT_TYPE_FIELD)
	e3:SetCode(EVENT_CHAIN_SOLVED)
	e3:SetRange(LOCATION_MZONE)
	e3:SetCondition(s.damcon)
	e3:SetOperation(s.damop)
	c:RegisterEffect(e3)
	--Destroy all cards on the field
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,1))
	e4:SetCategory(CATEGORY_DESTROY)
	e4:SetType(EFFECT_TYPE_QUICK_O)
	e4:SetCode(EVENT_FREE_CHAIN)
	e4:SetRange(LOCATION_MZONE)
	e4:SetHintTiming(0,TIMING_MAIN_END|TIMINGS_CHECK_MONSTER_E)
	e4:SetCondition(s.descon)
	e4:SetCost(s.descost)
	e4:SetTarget(s.destg)
	e4:SetOperation(s.desop)
	c:RegisterEffect(e4)
end
s.counter_list={COUNTER_FEATHER}
s.listed_names={CARD_BLACK_WINGED_DRAGON}
s.synchro_tuner_required=1
--summon proc
function s.spfilter1(c,tp)
	return c:IsType(TYPE_SYNCHRO) and c:IsType(TYPE_TUNER) and c:IsFaceup()
		and c:IsAbleToRemoveAsCost() and aux.SpElimFilter(c,true,true)
end
function s.spfilter2(c,tp)
	return c:IsCode(CARD_BLACK_WINGED_DRAGON) and c:IsFaceup()
		and c:IsAbleToRemoveAsCost() and aux.SpElimFilter(c,true,true)
end
function s.rescon(sg,e,tp)
	return Duel.GetLocationCountFromEx(tp,tp,sg,e:GetHandler())>0
		and sg:FilterCount(s.spfilter1,nil,tp)==1
		and sg:FilterCount(s.spfilter2,nil,tp)==1
end
function s.spcon(e,c)
	if c==nil then return true end
	local tp=c:GetControler()
	local g1=Duel.GetMatchingGroup(s.spfilter1,tp,LOCATION_MZONE|LOCATION_GRAVE,0,nil,tp)
	local g2=Duel.GetMatchingGroup(s.spfilter2,tp,LOCATION_ONFIELD|LOCATION_GRAVE,0,nil,tp)
	local g=g1:Clone()
	g:Merge(g2)
	return #g1>0 and #g2>0 and aux.SelectUnselectGroup(g,e,tp,2,2,s.rescon,0)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,c)
	local g1=Duel.GetMatchingGroup(s.spfilter1,tp,LOCATION_MZONE|LOCATION_GRAVE,0,nil,tp)
	local g2=Duel.GetMatchingGroup(s.spfilter2,tp,LOCATION_MZONE|LOCATION_GRAVE,0,nil,tp)
	local rg=g1:Clone()
	rg:Merge(g2)
	local g=aux.SelectUnselectGroup(rg,e,tp,2,2,s.rescon,1,tp,HINTMSG_REMOVE,nil,nil,true)
	if #g>0 then
		g:KeepAlive()
		e:SetLabelObject(g)
		return true
	end
	return false
end
function s.spop(e,tp,eg,ep,ev,re,r,rp,c)
	local g=e:GetLabelObject()
	if not g then return end
	Duel.Remove(g,POS_FACEUP,REASON_COST)
	g:DeleteGroup()
end
--counter and damage
function s.damcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return ep==1-tp and re:IsMonsterEffect() and c:GetFlagEffect(1)~=0
end
function s.damop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:AddCounter(COUNTER_FEATHER,1) then
		Duel.Hint(HINT_CARD,0,id)
		Duel.Damage(1-tp,700,REASON_EFFECT)
	end
end
--destroy field
function s.descon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsTurnPlayer(1-tp)
end
function s.descost(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return c:GetCounter(COUNTER_FEATHER)>=4 and c:IsReleasable() end
	Duel.Release(c,REASON_COST)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(nil,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,1,e:GetHandler()) end
	local g=Duel.GetMatchingGroup(nil,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,#g,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(nil,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,nil)
	if #g>0 then
		Duel.Destroy(g,REASON_EFFECT)
	end
end