When should a card be rare?

[Bloodyfrenzy]

true but if you do that people often lose the motivation to try and get these cards as while they are cool to have if they are no better than a normal card they would just be trophys. But i suppose rare cards being more specialized than other cards would mean players will try harder to obtain them for specialized decks.

[OldTrees]

true but if you do that people often lose the motivation to try and get these cards as while they are cool to have if they are no better than a normal card they would just be trophys. But i suppose rare cards being more specialized than other cards would mean players will try harder to obtain them for specialized decks.

Rare cards are rare not for those that would lose the motivation but rather for those that will not.

[Uppercut]

true but if you do that people often lose the motivation to try and get these cards as while they are cool to have if they are no better than a normal card they would just be trophys. But i suppose rare cards being more specialized than other cards would mean players will try harder to obtain them for specialized decks.

Well...yeah? Rare cards should just be trophies.  Winning an event and donating money aren't good reasons to have the option to run more specialized cards than other people. If anything those are good reasons to have trophies.