Arms Of Hadar will have a spot in any deck that runs black, as it will shut down plenty of small, fast aggro decks
While MTG's preview seasons normally only showcase a few cards each day, Warhammer 40,000's are different
If one deals combat damage to a player, its controller won't create a copy of any card
While the fact that your opponent gets to draw two cards after this song is played is a small bummer, it probably wont have any negative impact at all most of the time given how good Emerald is at discarding cards
The most expensive Unglued card is Blacker Lotus, which at a market price of around $30 feels high for a card you're required to tear into pieces as part of its activation cost, but the forced scarcity this created has undoubtedly affected the price over the last 20-something years
Theres a fun interaction between this and cards like Bone Splinters