The trick mechanically is to make sure that the card is useful in the set it appears in but that it will have an additional function with the next set
By playing many low-cost utility enchantments, Enchantress can create an engine that lets you keep drawing cards
Combine ramp to cast your 7-mana commander and other spells, interaction to keep opponents off-kilter and empty your hand, and a few finishers to finish the game, and you're all set for a powerful Damia deck
The average mana value of a shrine as of The Last Airbender is about 3.3, so you generally get 7 mana worth of permanents into play for 4 mana
Typically, players could expect to get approximately one Enchanted card per booster box of Lorcana cards, although they werent a guarantee
I heard different WOTC employees imply that this is actually a Green effect all along and Urborg, Tomb of Yawgmoth was a color break which I strongly disagree with (tainting land is Black / Blue thing), and another WOTC employee say that yeah, it's originally Black's thing but we want to complete the cycle and we're just starting with Green is all