Opposing monsters' ATK values are shrunk by Soul, those still too big to handle can be removed by Warrior Lady and Freed, and facedowns can be taken out by Blade Knight
Pioneer made the conscious decision to preemptively ban them, to help differentiate itself from the rest of the fetchland dominated formats
We will enjoy discussion over refreshments and snacks
It allows you to try your decks against an AI, a test drive before going out into Ranked to duel other human players
In fact, the Magic term "ramp" comes from the card Rampant Growth, which searches your library for a basic land and puts it into play tapped
Once you stick Wrenn and Six, say on turn 2, you can cast Crop Rotation for G and then again for 2G to get Dark Depths and Thespians Stage