There are a number of playable vehicles you can run in green ramp decks
If you were to compare the prices of Lorcana cards to the prices of other games (Pokemon, Yu-Gi-Oh, Magic the Gathering etc.) you will find that they aren't worth as much
However, you expose some of your most precious resources to a wider range of removal
Given were not assessing promos, and only looking at the cheapest prices of new cards, however, these cards dont entirely count.
Where aggro decks strive for speed, control decks are geared for the long game
Moonshaker Cavalry is a great payoff for having a large battlefield, as it'll give all your creatures a massive stat boost, usually enough to win the game the turn you play it