(2016-04-08) If a Swamp or Mountain is entering the battlefield from your hand at the same time as Foreboding Ruins, you may reveal the other land to have Foreboding Ruins enter untapped
When the creature hits your opponent they lose half their life
Oh, and did I mention that if you draw three cards, lose two cards, and have a Psychatog on the table, you've just grown your 'Tog by +6/+6 (two cards in graveyard + Fact or Fiction + 3 cards in hand -- discard the three cards to have six in the grave, remove all six to give another +3/+3)
Whether its thrifting, flea markets, vintage or modern finds, Ill bring it to you
Theres a lot of established heuristics on this subject, and a few points I can toss in to help you construct an optimal mana base for Standard, Modern, Pioneer, or whatever MTG format you prefer