While Pack Hourglasses, Wonder Hourglasses, and Shop Tickets are earned through missions and battles, Pok Gold isn't
In older formats, you can pretty easily play one of the best blue cards of all time: Yes, it might have a green mana symbol in the casting cost, but I can assure you that Tarmogoyf is one of the most impactful blue spells in Magics history
Often, permanents don't need to have a ton of charge counters on them (and in some cases, you'll actively want them removed), which can easily be done before using populate to copy a creature token you have
Aatchik, Emerald Radian gives you a nice payoff for playing insects, for blocking with them, or just using them as sacrifice fodder
Manor Gargoyle So this is yet another unplayable rare(?!) defender that can wake up