The Marcus King Band - Band Intro, The Well, War Pigs (Live)

Marcus King and his awesome band Live @ the Northcote Social Club 17/4/19. After the band intro they play something i'm unsure what it is and then lead into a cool, blues style version of the Black Sabbath song War Pigs. If anyone knows what the lead in song is? please comment so i can alter the listing description, CHEERS :) Edit* Song now known :)