For modern play, "Fetch Lands" (like Scalding Tarn ) and "Shock Lands" are the safest financial bets
Then if all ten digits are crossed out, you win the game
These lists can help you determine a price , even if you might not want to sell to that particular dealer
The artwork is fun enough as you see this giant-beaked turtle about to chomp down on the luckless axe-wielding guy, but I love the flavour of it essentially 'retreating into its shell', represented by refusing to attack if it had to block the previous turn
At three or four colors, it isn't a stretch to fix things with lands you don't need for Standard or Modern, such as Evolving Wilds, Exotic Orchard, Tranquil Expanse, and Jungle Hollow