It makes it a lot less fun, after all, the "gambling" aspect of opening packs is part of the excitement of playing these types of games
If an effect puts a double-faced card onto the battlefield, and its front face can't be put onto the battlefield, it doesn't enter the battlefield
If you discard a creature card this way, return it from your graveyard to the battlefield unless any player pays 5 life
cards to pay their cost, which is noted in the top left of each card
With secondary school grading, you can create different versions of the same grading table to accommodate different course difficulty levels (e.g., remedial, honors, advanced placement) and allow marks to be valued differently
There were also super-rare cards given out to staff during Pokmon world championships plus Top 16 and Top 32 cards awarded to players who reached those stages