The general thesis of this cube is: "Slow but scaling incremental effects".
Another way of putting this is: building value over time.

To this end, and to create our desired play environment, we employ a litany of design rules:

1. No permanent indestructible. (Ephemeral allowed)
2. No poison counters
3. No mill
4. No permanent shroud/hexproof (Ephemeral allowed)
5. No wide protection (Ephemeral NOT allowed, single target allowed)
6. No vanilla creatures
7. No printed toughness greater than 6
8. No occurrences of the word "random"
9. No "single card unsolvable problems"
10. No color hate
11. No snow
12. No stax
13. No 'can't be countered'
14. No land destruction
15. No "conceptual walls" with greater than 4 toughness
16. No "free" response cards
17. No storm
18. No creature type tribal themes
19. No ward costs over 2 mana
20. Removal quality is intentionally significantly higher than threat quality

Tags for card status are: Calibration, Probation, Expulsion