It's not as strong as Grafdigger's Cage , though, it's only similar in function
We wall up with massive creatures like Charix, the Raging Isle, Sire of Stagnation, and Glacial Wallthen tap to mill for 7, 10, or even 13 at a time
I think people need to think of these as Clue artifacts that are incredibly cheap to cast (and can be easily recurred with something like Salvaging Station), and just happen to also be Equipment cards that creatures can gear up with
Paste Magazine
15:11 allows for an artist to depict characters in a variety of poses, show off their clothing and tools, and situate them against an unintrusive background
This card has a low mana value, forces each player to make a tough choice, and simply outclasses most of its brethren save for maybe Plaguecrafter