How much mana should I put in a deck with Mountains and Forests? How much of each? I counted the mana in my black deck to see how much I need, but I still don't know.

  • Welcome to Board & Card Games Stack Exchange! In its current form, this isn't a question we can answer. But you may want to take a look at this related question (short summary: 24 lands is about typical for a 60-card deck). – Alex P Oct 19 '15 at 17:12