Best, cheapest walls in modern.

[Bozo_Law]

What are the est, cheapest walls in modern fir red and green?

[Gorzo]

{Wall of Roots} gets my vote.

I'm not familiar with red in the format outside if RDW and other types of decks that have no use for walls, so I'm not sure about any good red walls. But for green...Roots will be your best friend.