As for artifacts, you often want really cheap ones
The main reason for this type of downwards price spike is people rushing to sell their copies before the price reaches it's lower stabilized price
In most cases, this just meant adding more cards to the list, but in some cases in The Return of the King starters they also removed cards in a rebalancing attempt
It's going to be challenging enough just fitting in all the ramp, removal, card draw, and board wipes that will be needed to make a halfway functioning deck
Dive into Foundations, and experience quintessentialMagic: The Gatheringby playing with and collecting cards selected to give every player the advantage
The OG duals were so powerful they served as the reason for subsequent land cycles adding restrictions such as coming into play tapped or dealing damage when tapped for colored mana