Magic the Gathering Unboxing!
It could return virtually every non-land permanent an opponent controlled in one fell swoop (and there are stories of people using Aurora Griffin to return the lands as well!), turning a stalemated game into an instant-win with your hordes now free to march unopposed through enemy territory
We saw this not too long ago with Wilds of Eldraine, which catapulted Ashcoat from $35 to $70 for a few weeks
Ajani, Nacatl Pariah / Ajani, Nacatl Avenger Ajani, Nacatl Pariah is initially just an overstatted Raise the Alarm, but transforming it into Ajani, Nacatl Avenger is where the damage really starts rolling out
This card sounds like a great way for red to punish players who lean too far into artifacts while allowing you to create some Treasures at the same time
The general economy also plays a role, good times can boost new set excitement, while bad times can dampen it