There might not be an easy way to tell a fake Liliana from a real copy, and theres not as much incentive for someone to offer that service
The price is depending on the card's rarity (i.e
It's a slow starter if you don't have a curated first hand, and I would say that it's such a situational deck that even pulling generally good cards off the top of your deck can feel a little jarring when you haven't got your board set up right to play and/or protect it
The TCG also has a number of playable formats, though the two most popular are standard and expanded
Honestly, the Fortnite-ification of MTG is the least of our worries when you look at the burnout-inducing onslaught of previews and sets, and frankly disgusting pricing practices - like reprinting the Power Nine, but not in a tournament-legal way and in packs that will set you back a cool $1,000 to purchase
"Magic: The Gathering's most popular formats explained"