Originally Posted by
iamajellydonut
I'm not a fan of Dark Depths at all in the slightest, but if I had to offer an opinion, "kind of".
I mean, the cycle lands are easily the least critical card in your deck. They're not a land that you actively try to make mana out of. They don't hurt your opponent. They don't bury your opponent. They don't do anything really extravagant or drastic. Not like mother fuckin' Chalice of the Void. Or mother fuckin' Knight of the Reliquary. And so on and so forth. But there's a reason, with regards to any deck, that you don't run 60 copies of Knight and call it done. You need the glue, and the cycle lands are that glue.
Given that turn ones usually result in a great twiddling of thumbs without Mox Diamond, if you feel like your opening hand is light on land, you can easily afford to play a tapped Barren Moor on turn one for value. On the flipside, if you feel like your opening hand is would be good if only it weren't nothing but land, you can go Bayou->Barren Moor for value. Then of course you have the cute interactions with Loam.
By sharp contrast, you can do none of that with Dark Depths or Thespian Stage. Nor could you do it with a Stoneforge Mystic, or any of the other flamboyantly fantastical finishers. You can't just straight up swap Tranquil Thicket for Dark Depths on a one-to-one basis just because they're both lands any more than you could swap an Island for Emrakul on a one-to-one basis because they're both colorless. Dark Depths is nothing except Mox food until you find Thespian Stage. And same goes for the reverse.
also, this is while distracted at work, so sorry if it's poorly formatted