Conversely, anything where you want your extra Tournament to no longer be in your hand could be a reason to play it. Maybe you want to play an Altar or Forager or something and you want an empty hand so you don't have to trash anything. Also if it's the only non-terminal in your hand and you have TR or KC or Procession as well as terminal draw, multiplying the Tournament would give you extra Actions to use after playing your terminal draw. Or draw-to-X. Basically any time you'd want to play a Ruined Village, although you'd probably want to trash Ruined Village when you could, unlike Tournament.