For example, let's look at Environmental Sciences, one of the simplest Lesson cards
At the end of your turn, if you are the monarch, you may have target creature you control deal damage equal to its power to target creature an opponent controls
3 Stormkeld Vanguard Both halves of Stormkeld Vanguard are essential for any green/X deck in Wilds of Eldraine booster draft Limited
Personally, I'm just itching to run Jumbo Cactuar in Commander alongside Fling, or put it into my Anzrag deck for a 30,000 damage turn
But since it turns them into artifact vehicles, thats good enough for me to include it
Terra will be milling two cards each turn, which gives you the chance to bring some important creatures onto the battlefield