In theory, they could show up in other kinds of booster in the future, but its unlikely as Wizards will want to keep something special for the most expensive boosters
Horn of Greed often counts as colorless card draw, but it also gives your opponents some agency to avoid the worst of your wincons
But, if an aura you normally play to benefit your creatures can also pull double duty as removal for opposing creatures even if its not great removal then that pushes its scores in those weak quadrants way up
Be as descriptive as possible, and dont try to hide any damage
Most importantly, using the foil loophole to reprint Reserved List cards would bring the reprint policy back in line with its original intention, which was to protect the game and keep it thriving in its current environment
Fun Focus: Try collecting based on aestheticsa theme like watercolor-style Pokmon or alternate arts featuring legendaries. 3