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

Demon's Horn: 15
Demon's Horn: 13
Eiherium Sculptor: 6
Etherium Sculptor: 8
Etherium Sculptor: 3
Kraken's Eye: 14
Kraken's Eye: 12
Leonin Scmitar: 4
Leonin Scmitar: 2nd win
Loxodon Warhammer: 11
Mater of Etherium: 5
Platinum Angel ( Most Powerfull Card in Game ): 10
Razormane Manticore: 7
Sharding Sphinx: 9
Tidehollow Strix: 1