In February 2022, one collector dropped $900,000 on a particular Pikachu-Holo Illustrator card
Recurring Nightmare Market Price: $70.09 One of the two cards that undergirded the overwhelmingly dominant Recurring Survival archetype in Standard at the time of its release, Recurring Nightmare allows you to repeatedly recur a creature from your graveyard by sacrificing another creature and returning Nightmare to your hand
The focus on dragons has already created some spikes in prices
Activate only if Masters Manufactory or another artifact entered the battlefield under your control this turn
If that happens, well, just hope your opponent concedes out of frustration before they catch on
Because you almost always sacrifice as part of a cost rather than on resolution of the effect, its immensely difficult to contest the important part of the mechanic on the stack