I have put together a KHM retailish cube including cards only found in set/theme boosters [KHM 374-393], The ratio for the cube is 4xC/2xU/1xR/1xM.
I have including the 10 DFC lands [KHM+ZNR] for testing.

- The Spirits of Istfell [Foretell Control]
- The Angels of Starnheim [Second Spell]
- The Zombies of Karfell [Snow Midrange]
- The Giants of Surtland [Spells Matter]
- The Demons of Immersturm [Boast Aggro]
- The Elves of Skemfar [Self-Mill]
- The Trolls of Gnottvold [Ramp]
- The Dwarves of Axgard [Artifacts Matter]
- The Humans of Bretagard [Tokens]
- The Shapeshifters of Littjara [Changeling]