You do have to enchant a basic land you control but that shouldn't be a problem at all in the majority of circumstances in Limited
I purchased 7 copies after Yarok was spoiled and while the price hasn't gone haywire yet, it definitely went up a few bucks since Yarok's spoiling
Pair it with free or low-cost interaction like Gut Shot, Mutagenic Growth, or Lightning Bolt, and it can deliver massive swings while it still plays defense with efficient trades
She also has ways to build up her momentum with her Enhance, but the real power comes from having less health than your opponent
I would be interested in understanding how other people have handled the balance between aggressive and defensive decks, whether other people have gone in the direction that I have, where defensive cards are also tools for aggressive strategies, or whether there is a more traditional balance, or even heavy handed defensive measures, such as Timely Reinforcements
Players can crew a vehicle by tapping a creature which now makes it the driver of that vehicle