New to the game and Modern specifically...played my first match against Ad Nauseum I am basically playing Jund without the Lilis, Bobs or Fulminators, very similar to the MTG goldfish list. Last night at a local modern event I was doing moderately well against creature decks and then I had my first game against Ad Nauseum.  Took the first game easily but then he had Leyline of Sanctity was in both of his opening hands. I was at a complete loss. Maybe it's obvious but do I go after his mana? It was very frustrating, also didn't help that he didn't explain anything he was doing. Apologies if this had been asked before. 