Most control decks can't afford this level of card disadvantage even if they can support the island requirement
Its a free discard outlet as well, and there are lots of exploitable synergies with madness, discard, delirium, reanimator, and the like
Many ideas and mechanics that used to be silver-border are now printed in black-bordered sets, sometimes 1-for-1 When people approach me about silver-bordered cards in Commander, the most common topics are (in no particular order) Host/Augment (and Surgeon General Commander), Acornelia, Krarks Other Thumb (and other coin flipping/dice rolling cards from Unglued), and Contraptions
Basically it is one of the least painful colourless lands to include
This card is boosted based on the number of subtypes in the grave, which can include Equipment, Auras, and more