You can have sticker sheets that you drafted or opened in your boosters, and those sheets have various stickers on them
And the system keeps growing
Royal Magical Library can only hold three spell counters, so be sure to use its effect to draw a card after every three spell cards are activated for the best results
As someone with thousands of Pokemon cards, Ive learnt a thing or two about how to store them correctly
For example, a set with an Aura theme usually forces us to cut back significantly on Equipment. The main hurdle when designing equipment is their generic mana cost
Even though the card is designed to only do it's thing once, if we blink it while it's transformed, it'll go back to the front face, and then all we have to do to get that extra turn is retransform it