God-Eternal Keftnets ability is a little more complicated than a miracle spell, because it actually creates a copy of the instant or sorcery card that you drew and allows you to cast it for a reduced cost
You can pick your own adventure here, shifting around lore counters on sagas, messing with +1/+1 counters on amass creatures, or even tinkering with planeswalker loyalty counters
Frankly, Im surprised we even got it at all
If that's not enough, there's always the generic Blue/Red win conditions you can jam to win the game out of nowhere
The permanents that can remove any kind of counter can remove these finality counters so that they'll go back to the graveyard instead to be reanimated later
The second outcome is that the Collector booster ends up in the hands of someone more involved in the community, be it a Redditor, influencer, or content creator