The copied artifact stays in play, even if the original goes to the graveyard, which means a player can use it to get some pretty powerful artifacts on their side and gain the upper hand against more seasoned players with stronger decks
While Imps Mischief is in some ways better, because it gives a Deflecting Swat effect to Black, its also nearly $30, and not worth it unless youre playing at the highest power levels in which case youre probably playing red and/or blue anyways, defeating the purpose
Copies start at $38 for this monster, making it the most valuable card across all three of these drops
We also have ample evidence that the regular versions of things that are Dragon-focused arent necessarily expensive, and I expect this to get to $5 or less for regular versions
Walking Ballista Walking Ballista is a versatile card that can be used as a big stompy creature, removal for creatures and planeswalkers, or just to deal direct damage
That's because it was made by Wizards of the Coast in an attempt to get the rights to roll out English language pokemon cards - this card was a presentation item