As a commander, its great because it can be both a threat on board and a long-game powerhouse when the times right
Decree of Justice helped to make Mono-White Control a winner when it was printed, which I played heavily and even wrote a primer on it here ( You can wait until EOT, tap out and cycle for a ton of 1/1 and then you drew a card and it was hard to answer since you cannot counter a cycle since it wasn't cast
Its a useful card that will likely see a good amount of play this season, but the value comes from the unique aesthetic and the fact that Lacey is featured
Ashiok, Nightmare Muse As always, planeswalkers are going to be an expensive pre-order
Why play your own deck when its so much more fun to play someone elses
All provide a slew of rewards, except one