Having multiple Orb of Origins on the battlefield will have no additional effect on artifacts on the battlefield except that the Orb of Origins will also make each other mono and continuous
Facilier cards in the same ink, and one of the games best rushers in Rafiki, Mysterious Sage, and youve got a strong shell that provides a lot of card advantage
It's also more difficult to pin down a set booster's rarity ratio, with each slot in the pack having its own chance of being a different rarity
Agate Instigators close, but isnt indestructible, and like Slash, Reptile Rampager are comparable, but more expensive
What makes them stand out though is the ability to open an attraction on death, which, especially if it becomes looped, can swiftly generate a storm of resources for their controller
Price: A few dollars to around $20 depending on playability and character