As cool as this card looks, its not super surprising that Namaaris enchanted rare form would be the second least expensive of the enchanted rare cards from this set
Top 3: Not enough to choose from
We reported that one deck had a reprint value of around $160 (125.72) two months ago, and MTGGoldfish values that same deck at $75.07 (59.47) today
Altar of the Brood simply makes it so that each permanent that enters the battlefield under your control causes each opponent to mill one card
However, Wizards came to believe that this impeded easy recognition of a card and that having multiple versions caused confusion when identifying a card at a glance
I drafted this one with friends quite a few times last year, which is why I have so many Arcane Signets, Three Visits, and Thought Vessels sitting on my desk, just waiting to be put into various decks