graded card size CSP Resealable (PSA Size) Sleeves tapered OPP sleeves are the clearest on the market today Miyukyee 50 Pack Card Case

Mason would allow me to attach this energy card to my benched Drowzee for no reason other than spite

You may play the exiled cards (and spend mana of any type to do so) even if Court of Locthwain leaves the battlefield

It matters not

Product Configuration: - 15 cards per pack - 36 packs per box Product Sku: WOCD1339(B) UPC: 653569013396 Dimensions: 5.38 inches x 4.63 inches x 2.38 inches

Though they tend to be a relatively cheap way of getting a bundle of three packs (cost wise, theyre generally slightly cheaper than buying three boosters separately), with no way of guaranteeing what packs are in the Pokeball tin, its a bit of a gamble compared to just buying the boosters you want

If you're not doing something illegal or damaging the booster pack in any way, I don't see any problem with taking advantage of an obvious flaw in the system and stacking the odds in your favor