Careful Study 2.0 is obviously one of the best cards in Modern, but that's more a product of what it enables rather than the power level of the card itself
The Cat/Oven combo from Eldraine is here, too, giving you even more ways to move cards and permanents around for incremental value
Its also a big moment for TCGs, bringing to mind the early days of the mounting TCG hype in the late 90s/2000s when you would get cards at big movie events from Pokemon (like the famous Mew promo card)
I thought there might have been enough whales/collectors who wanted a complete set, but the pricing doesnt back that up
Nasty card flow from a Commander over time from your fun thang
K-9, Mark I Small but mighty, K-9, Mark I is a great defensive piece in any legendary deck