Check out these types of counters: foreshadow, hope, indestructible, point, and quest as seen on: Ominous Seas, Dawn of a New Age, Tekuthal, Inquiry Dominus, Strixhaven Stadium, Beastmaster Ascension
Given that these Enchanted Rares are not guaranteed in a booster box, and are only found in one out of four boxes, they will continue to sell for extremely high prices and even more after The First Chapter stops being printed by Ravensburger
While I could recommend a card like Treasure Nabber which is bonkers good in the right meta I think the true budget option here is actually Ruby Medalion, and hear me out
#1 Faerie Mastermind (Rare, Extended Art) The takeaway from CommandFest was, if you play blue in EDH, you should play Faerie Mastermind
Whatever the white pitch spell card ends up being, it will likely be worth considering
The Most Explosive The plan for Alaundo the Seer is simple: run tons of untappers, like Aphetto Alchemist, put copies of Slime Against Humanity into exile, and watch as you start generating tons of 5/5 Oozes for free