Day of Judgment and Star of Extinction are much worse, falling into the bulk board wipe category you often see represented in precons
This does still require a lot of setups, which is why it doesnt rank higher than this, but I can see a lot of decks wanting this card and also finding it very rewarding to build around it as the commander
On top of that, if a Fiend-type monster is discarded from the hand, you get another discard with drawing two cards
But thats a story for another time
With a focus on poisoning your opponents and winning through overwhelming card advantage and board presence, there are tons of great cards to spread Phyrexias love around with
Liliana of the Veil [Best Early-Game Disruption Walker] When Liliana of the Veil first appeared, she completely changed expectations around what a three-mana planeswalker could do