Alright, I think everyone has had enough fun with this, so let me either make this better for you, or ruin it.
The achievement system makes this radically different from commander. The ones on the website are just examples of what they may be like. But here's something important...
Which I these achievements actually require you to interact with the other players?
1. Control a permanent with 3 or more auras attached to it.
2. Control 10 or more enchantments.
3. Have 3 or more of your Constellation abilities trigger at the same time.
4. Control an enchantment creature with an enchantment attached to it and an enchantment attached to that enchantment.
5. Have 25 or more devotion to a single color.
6. Have 4 or more cards escape your graveyard in a single turn.
7. Control a Demigod and God of the same color.
8. Control 3 or more Sagas.
9. Target a creature you control with 4 or more spells in one turn.
10. Have 30 or more or more creature cards in your graveyard.
11. Win a game of Commander.
12. Control 3 or more permanents with ‘Temple’ in the name.
13. Have an effect you control cause an opponent’s God to leave the battlefield.
14. Generate 25 or more mana on a single turn.
Just two of them. So here's the ideal strategy. Make a deck designed to get all of these achievements. It doesn't have to be consistent at getting them, just capable. Then, when you sit down at the table, make a pact with the other players. Nobody wins the game until everyone has gotten their max number of achievements. Assuming that everyone follows this, and built their deck to get these achievements, you can stall the game out for as long as you want, and you're guaranteed to get at least 13 points, which is one promo pack. After a second game, you'll have 26, which is either 3 promo packs or one pack and 1 foil promo.
It's going to be very easy to get prizes.