Well likely see them reintroduced learn and lessons in future expansions based on the positive reception and ease of use
More than anything, these moments seem to be self-perpetuating, where everyone gets tremendously excited about one particular card, which creates demand, which raises the price, which exaggerates the rarity, which creates demand The next most expensive right now is the Latias ex at almost $200, then the gold card version of the Pikachu ex at $100, and that Hydreigon pictured above at about $95
That means this deck has more access to Golos than it would if it had four copies in the maindeck
Realmwalker, Capricious Sliver, Regal Sliver, Synapse Sliver, Titan of Littjara, For the Ancestors, Windfall (lul), Distant Melody, Herald's Horn, Icon of Ancestry, Vanquisher's Banner 11 card draw
This is the hard data showing what someone actually paid for that card in a recent transaction
Mayhem doesnt force you to play the card immediately, which allows for some better sequencing, but because of this, you cannot ignore timing rules with Mayhem