iirc cards like Stage and Vesuva are "hard" copies, while Spreading Seas would turn Field into a "soft" copy. So if you have a Stage target a "hard"...
There is a difference between flipping over the top 3 cards of a deck and seeing three 1-card combos, and flipping over the top 3 and seeing a bunch...
Let's also contrast the cost difference between UR Dreadstill's 1x Volc and the cost of 3x Volc + 2x Sea + 1x Badlands (or 2x Tundra and 3x Trop). We...
I mean you just play Karn and the treasures do nothing. The problem is that most every strategy in legacy would be better served by countering Ending...