While Pokemon is in the middle of a boom, as investors scalpers buy out all available stock to flip at outrageous prices, it's always had relatively good sales
I prefer typical soft see-through sleeves as theyre the least damage prone, accepted by all grading companies and easiest for everyone to get cards in / out (I often sell cards at the card shop)
Driven by curiosity, one of them unleashes a flood of magical ink
Then, you can spend six mana, a kinda steep but not too terrible price, to make a token copy of any artifact you control, except that token is a 1/1 Soldier creature in addition to its other types
I decided not to add markings to the trays themselves to identify which colors go into each tray, but once you load them up the first time, you will always know which color goes back into each (unless you run into the unlikely scenario where two of the trays are completely depleted during a game)