I considered this characteristic among the first, as transparent sleeves are improper and not allowed in tournaments (if youre into them)
Otherwise, put a +1/+1 counter on that creature, then put the card back or put it into your graveyard
Previous Secret Lair precon decks, like last year's adorable puppies and kittens deck, and the angels deck with the stupid name, have sold out swiftly and currently fetch extravagant prices on the secondary market
Hapatras synergy with -1/-1 counters helps ensure you have the most creatures on play at all times, and since her Snake tokens have Deathtouch, they also serve as an excellent deterrent to opponents looking to exact retribution
(But that doesnt mean youre right to do it, so there.) And hey, look