The upside is, the more you engage with TCG Pocket, the more you'll get out of it, not just in literal rewards but in your actual enjoyment of it
Finally, theres the Special Guest cards
However, there are cases where you either don't have enough Energy, or you need to save it
I think Whatnot can pose a very buyer-sided advantage if you can find the right stream: one with single card auctions mostly all of a certain era that youre looking to pick up a number of cards from with a small - medium audience
Red Gratuitous Violence Guttersnipe Impact Tremors Abrade Ball Lightning Dragonmaster Outcast Harmless Offering Lathliss, Dragon Queen Redcap Gutter-Dweller Stromkirk Noble Taurean Mauler 2 Crackling Cyclops Goblin Negotiation Strongbox Raider 4 Burst Lightning Fanatical Firebrand 2 Heartfire Immolator Hidetsugu's Second Rite Seismic Rupture Thrill of Possibility 2 Dragon Fodder Bolt Bend Crash Through Dragon Mage 2 Ghitu Lavarunner Giant Cindermaw Hoarding Dragon Mindsparker Obliterating Bolt Ravenous Giant Viashino Pyromancer Gratutious Violence, Guttersnipe, and Impact Tremors are in traditional foil