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

Blighting: 3
Broodmate Dragon: 11
Crucible of Fire: 4
Demon's Horn: 5
Dragon Roost: 6
Dragon's Claw: 7
Fervor: 13
Flameblast Dragon: 1
Flameblast Dragon: 14
Hellkite Overlord: 15
Shivan Dragon: 9
Threaten: 8
Violent Ultimatum: 12
Wurm's Tooth: 10
Wurm's Tooth: 2