See section 5, Turn Structure. 2
Hopefully people won't want to attack the player directly benefitting them, but that's not always the case
You will get these packs if you participate in a gym battle at a local game store in Japan
BPhillipYork: This enables a whole deck around discarding and replaying, essentially giving madness to everything in your deck, though, obviously it's mayhem
Ive noticed this problem in KMC sideloaders too, and the airtight seal youre looking for in a double sleeved card is compromised if you use a sideloading inner sleeve with a toploading outer
Shadowless cards were printed during the initial run of Base Set before the drop shadow was added to the card border in subsequent print runs, making them identifiable by their slightly different border design and, most importantly, the absence of the shadow that gives the variant its name