Win the indicated number of matches with the Mind Of Void deck to unlock the corresponding card for it.

Borderland Behemoth: 7
Bramblewood Paragon: 10
Bramblewood Paragon: 3
Dragon's Claw: 12
Dragon's Claw: 14
Eyes of Wisent: 17
Eyes of Wisent: 16
Hurricane: 6
Mirri, Cat Warrior: 5
Obsidian Battle-Axe: 11
Obsidian Battle-Axe: 1
Shock: 2nd win
Shock: 9
Vengeful Firebrand: 8
Vengeful Firebrand: 4
Wurm's Tooth: 13
Wurm's Tooth: 15