These were highly-popular re-imaged versions of the original Gold and Silver games from the Game Boy Color era
The Superlatorium (acorn) Artifact Attraction Visit An opponent chooses "the fastest," "the scariest," or "the weakest." You choose a creature, then ask a person outside the game to choose the creature that best fits the chosen criteria
At the beginning of your upkeep, remove a pupa counter from this Aura
When you do, up to X target creatures each get -1/-1 until end of turn, where X is the number of unique vowels on that sticker
Rather than try to win the game as quickly as possible, a control deck will want to slow down the pace of the game while it accumulates incremental advantages each turn
Destroy all creatures with converted mana cost 4 or greater