Like most Magic: The Gathering cards, the value of Myriad Landscape depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Tales of Middle-earth Commander)
Ask the auctioneer a question
Example of Usage: "Toon monsters you control cannot be banished." "Negate the effects of all Toon monsters on the field." Related: Toon [spoiler=toss a coin] Used when you have an effect that tosses a coin (see "coin" for more info)
As a result, we would expect non-foil copies of stupid sexy Karn to be worth about the same, at the least
Considering this game is already a couple years old, the Online mode wont give a lot of results, so the Single Player option will be the better one
ENTRY 20: SCARECROWS Duskmourn they've got their own little culture known as the Wickerfolk