Karumonix, the Rat King You could call the urge to play rats infectious and Karumonix, the Rat King would heartily agree
My mom would take me and my brothers and we would have to wait in line to buy one pack each before getting back in line for more
Offer something to bargain and its actually quite strong, turning into just about any other card in your library, be that Sheoldred, the Apocalypse or Tendrils of Agony after a huge storm chain
There have even been cases of shops that sell the cards which represent monsters and their attributes, and can be used to play a tabletop game being broken into and physical fights breaking out in low-crime Japan
I find that asking it to give a number and then compare against a scale yields more consistent results than simply asking it to provide a binary classification of whether the card is too strong or not
The saving grace is that the odds of pulling a trainer as your rare are lower than in base set (Clefairy Doll and Devolution Spray - two really useless rare cards - thrown out, and a number of rare Pokmon from Jungle included)
