Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
This gong harbors the soul of an untamed dragon. It soars through the skies with an incredible roar, marshaling all those who hear its call to battle.
--銅鑼ドラゴン
--Dragong
local s,id=GetID()
function s.initial_effect(c)
	--pendulum summon
	Pendulum.AddProcedure(c)
end