If the Pokmon its attached to is Knocked Out by damage from an attack by your opponents Pokmon, you can search your deck for up to 3 cards and put them in your hand
Same mana cost, triggers precombat, swaps two life for a card, one for a Token or three for a 3/2 and you can do a few here and there or all three
All the original misprints and errors from that original run are also present since the cards are all original reprints of their Beta versions
The set also includes promo cards released in 2016 that depict Pikachu cosplaying as Nintendo mascot Mario and his plumber brother Luigi, as well as other Dress-Up Pikachu cards
When modelling something like this, there are two ways to go about it: You can either use brute force, collecting a large enough statistical sample to build a model, or you can try and figure out the underlying mechanism