Why, after what we've seen in the last few years with mechanically unique cards, would this be considered to be a good idea
There are questions about the legitimacy of the spoiler and we dont have official confirmation the leaked image is a real, but Mythic Spoiler ran with it and in general, the Commander product spoilers we have seen have been legitimate in the past
Sure, you'll have to wait four turns until you can start attacking with it if you cast it this way, but that isn't really a problem when you consider the amount of ramp you're getting from doing so
Higher value cards have better buylist% but you can still get a lot more money selling on your own so it might be worth your time
When Elsa is played, you can also exert up to two enemy characters and make them unable to ready up on your opponents next turn using her Deep Freeze ability
The rather creepy design is reflected by the cards effects and flavor text, which indicate that this Grimoire imprisons a spirit that only finds relief when the player opens it (ie, draws a card from their library)