Another good alternative is to draw cards when a certain condition is metlike, say, possessing a creature with four or more power
If archers become a viable typal deck, this elf archer will be more valuable
For players who frequent the same playgroups with the same decks week after week, introducing lock cards which target only one deck at the table will inevitably be taken as personal, even if just within the politics of threat assessment. Sleeving up these sorts of cards can feel like the start of a spiteful arms race, where players without the resources to change commanders regularly are sitting ducks against spells never balanced for main-decking against known opposition
Sauron, the Dark Lord Sauron, the Dark Lord is a very strong threat on its own
You probably arent going to group cards together with an elastic band, either, since that is likely to damage the cards
Like most Pokmon cards, the value of Mimikyu depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Lost Origin)