Cube should have 484 cards.
or 450 if 10players is max. Hard to cut, suggestions welcome.

Some erratas on cards:
Blacker Lotus (sacc 4 mana remove from game and deck for this match)

Chaos orb:
untargeted vindicate

Meet and Greet "SiSay":
Always create a treasure token

drafting:
Large cube
11: 2x22 = 484
10: 3x16 = 480
9: 3x17 = 459
8: 4x15 = 480 or: 4x14 = 448

Small cube (450)
10: 3x15 = 450
9: 3x16 = 432
8: 3x18 = 432
7: 4x15 = 420