Duskmourn set cube! Starting this off at a rarity ratio of 3/2/1/1. Packs of 15, 9 commons, 4 uncommons, 1 rare+, 1 Land slot.

Rares not included are as follows:

• The whole leyline cycle:
• The whole verge cycle:
• Marvin, Murderous Mimic:
• Ghost Vacuum:
• Dazzling Theatre // Prop Room, Grievous Wound, Marina Vendrell's Grimoire, The Tale of Tamiyo, Winter

After all this, the cube stood at 535 cards, so I put in an extra copy of Valgavoths Lair and 2x Terramorphic Expanse to make the fixing a tiny bit better, an extra copy of baseball bat as a minor buff to gw survival, and an extra copy of Say It's Name to make the altanak thing slightly more real.

Play Boosters:
The 14 card packs are each seeded with the following rarity composition:

7x Commons
3x Uncommons
1x Wildcard (9:12:2:1)
1x Rare / Mythic Rare (7:1)
1x Wildcard (9:12:2:1)
1x Basic Land / Unlucky Land (1:1)

https://www.cubecobra.com/cube/list/c30687bb-88c1-4046-831a-6465372b8dc3