There is a limitation - the artifact enters with a Finality counter, which will exile the artifact if it's ever sent to the graveyard, shutting down infinite recursion loops
So if your Commander is Red and White, then you cannot have any Blue, Black, or Green cards in your deck (and the rules also dont let you cheat and use colored abilities either)
Getting both an extra combat and a stat boost stacked on top of Treasure token generation lets this do a lot of effects for a combined seven mana
Before I get to my Top 10 list, I want to address a few cards that I believe deserve some attention, but that I personally generally dislike for Cube play
Exocrine goes a step further, allowing you to pay X, and deal X damage to other creatures and players
Whats your favorite commander for storm decks