you can use it at instant speed making it very effective against so many more things including man lands, combo decks, haste dorks etc
But knowing the correct dimensions for standard and jumbo Pokmon cards can be useful for spotting fakes, avoiding cheaters, and buying sleeves and binders to protect your collection
I think this could end up being a real mover based on Engine decks and elves being nutty in general
Since you don't have to fight for a spot traditionally, you may argue that this shouldn't make my list since it's easy to add to your decks compared to the above and below stuff
Enchantment Sideboard (CTRL to add secondary) Maybeboard Life of the Party First strike, trample, haste Whenever this creature attacks, it gets +X/+0 until end of turn, where X is the number of creatures you control