Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
All monsters in your GY become Warrior monsters. Once per turn, during the End Phase: You can destroy all monsters you control.
--不死武士の悼み
--The Immortal Bushi Mourns the Mortal Body
--scripted by Naim
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)
	c:RegisterEffect(e1)
	--Monsters in your GY become Warrior
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_CHANGE_RACE)
	e2:SetRange(LOCATION_SZONE)
	e2:SetTargetRange(LOCATION_GRAVE,0)
	e2:SetValue(RACE_WARRIOR)
	e2:SetTarget(s.tg)
	c:RegisterEffect(e2)
	--Code check
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_FIELD)
	e3:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e3:SetCode(id)
	e3:SetRange(LOCATION_SZONE)
	e3:SetTargetRange(1,0)
	e3:SetValue(s.val)
	c:RegisterEffect(e3)
	--Destroy all monsters you control during the End Phase
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,0))
	e4:SetCategory(CATEGORY_DESTROY)
	e4:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e4:SetCode(EVENT_PHASE+PHASE_END)
	e4:SetRange(LOCATION_SZONE)
	e4:SetCountLimit(1)
	e4:SetTarget(s.destg)
	e4:SetOperation(s.desop)
	c:RegisterEffect(e4)
end
function s.tg(e,c)
	if c:GetFlagEffect(1)==0 then
		c:RegisterFlagEffect(1,0,0,0)
		local eff={c:GetCardEffect(EFFECT_NECRO_VALLEY)}
		c:ResetFlagEffect(1)
		for _,te in ipairs(eff) do
			local op=te:GetOperation()
			if not op or op(e,c) then return false end
		end
	end
	return c:IsMonster()
end
function s.val(e,c,re,chk)
	if chk==0 then return true end
	return RACE_WARRIOR
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	local dg=Duel.GetMatchingGroup(nil,tp,LOCATION_MZONE,0,nil)
	if chk==0 then return #dg>0 end
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,dg,#dg,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local dg=Duel.GetMatchingGroup(nil,tp,LOCATION_MZONE,0,nil)
	Duel.Destroy(dg,REASON_EFFECT)
end