[94] Pocket Monsters was suspended indefinitely, and GF turned their focus on other titles (see Game Freak Games)
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
Rain of Riches getting you a free cascade off of whatever high-CMC spell you just used all of your Treasure on will see you flying through your library at top speed
You can take advantage with power-matters themes, which can include sacrifice decks that give you benefits for axing or flinging your own bulky creatures
While the starter decks value and upgrade path arent the best, its overall playability and fun factor are pretty high
Doflamingo will surely continue receiving support, so this card will stay at the top for a long while