Faithless Looting doesn't lose card advantage in this archetype. If Looting discards cards that want to be in the graveyard, it is practically card advantage. Digging 2 cards deeper for Loam, Assault, and all of the answers you need against any deck makes looting the most efficient and powerful cantrip possible for this archetype.Quote from Decadent Command »Faithless looting is overrate in my experience. It give you card disadvantage. And offers no defensive capabilities.
Commune with the gods while searching for answers in a better fashion, also does not lose card advantage. And both of you didn't point out it does a better job of pumping Countryside crusher and Tarmogoyf than faithless looting does.
A one-of Urborg is near useless when you want it early because loam is the best tool to find it but by the time you get loam running their hand is practically depleted.
When you are running this many lands too, often times you can discard your fifth land alongside another card. So even if you don't have Loam to get all the lands you discarded back, you can easily find enough cards to discard. In those corner cases where you have to discard a "real card" from your hand, Looting offers you card selection where for instance you can discard a Countryside Crusher if you have a hand with multiple three drops. Looting smooths out the draws of the deck and gives you something to do late game with flashback.
While Commune may not lose card advantage, it definitely loses tempo, which is much more important in this case. Late game, you can double spell with it, making it stronger. Early game, if you take a turn off to effectively draw a card, maybe set up your graveyard better, it's not powerful enough. The reason why I say if you hit Seismic Assault it is worth it is because Assault can effectively wipe the board the next turn to come back. If you take a turn off only to hit another Tarmogoyf, you probably would have been better off to play a Goyf that turn instead.