Your mana rocks basically never stay destroyed, your commander comes back from the command zone, and your other artifacts and enchantments can just be replayed as well
If, for example, you sacrifice Intrepid Paleontologist to pay an additional cost of the spell or it's destroyed in response, the spell will still resolve normally
Ornate Imitations and Fear of Change can dig through every creature already patched into the client , including those still under spoiler-season embargo
It has some strong effects, but enough of a strong effect for 9 mana
For example, this card was in the Theros file for a long time: 4 Trojan Horse Artifact Creature Horse Defender When CARDNAME enters the battlefield, an opponent gains control of it
While this card costs nine ink to bring out, you can get a discount for each item you have in play