Granted, it's tapped Treasure, and it's gated to once per turn, but that's only fair given you can convert your stash of Treasure tokens into 4/4 fliers with haste
You may just have a small fortune on your hands
In Commander, counters-matter decks love how consistently this artifact accelerates both mana and board presence, giving it exceptional long-game value
Until end of turn, that player cant cast spells, you may look at the top card of their library any time, you may play the top card of their library, and you may spend mana as though it were mana of any color to cast spells this way
Cards that I would normally hesitate to run such as Iron Myr, Plague Myr, and even Hedron Crawler are strong picks in a Zada deck, despite being vulnerable to removal
When Aerith Gainsborough dies, put X +1/+1 counters on each legendary creature you control, where X is the number of +1/+1 counters on Aerith Gainsborough