Everything has Death/Void in common unless otherwise noted.
Character:
1 6/6 .Nina Williams. +0M
Asset:
3 4/5 Acheron and Nirvana +3M - Unique - Weapon (Void)
4 3/5 Scroll of the Abyss +2M - Unique (Death)
Actions:
4 6/4 Proficient Sniper
Attacks:
4 4/3 3H4 Wild Storm - Weapon (Void)
4 4/3 3H4 Head Ringer +2M - Kick
4 5/3 3L4 Wipe The Floor +1M - Kick
4 3/3 3H0 Evil Mist +0M - Ranged
4 5/2 4H5 Curse of the Ancient Mariner +2M - Combo (High Attack, High Attack) (Void)
Foundations:
4 0/5 Man Behind the Mask +3M (Void)
4 2/4 Undisputed Ruler
4 2/5 Genius Alchemist (Void)
3 2/5 Mishima Zaibatsu Leader +3H (Void)
4 2/5 Chasing After the Power (Void)
4 2/5 Ka Technique +3M
3 2/5 Body of Souls (Void)
3 4/5 Dead for One Thousand Years +3M
Total: 60 cards + 1 character
-o-o-o-o-o-
Wipe the Floor is good discard, but if I had momentum gain I would switch it for Sadistic Cupid so the entire deck would be high attacks. Easiest kill comes from Curse of the Ancient Mariner. Acheron/Chasing/Wild Storm powers it up, it gets its own momentum in the best case scenario (and you'll have to go aggro in any other case to get at least 2 to 3 momentum).
Wild Storm + its E + Genius Alchemist is a godsend for void aggro. Every Wild Storm that gets Genius Alchemist and its E done on it makes any card past that point essentially -2 difficulty.
Consider the Wild Storm/Wild Storm/Curse scenario, with two Genius Alchemist. Wild Storm needs a 4, then Genius and make a 5 for the E. The second Wild Storm will only need a 3 to play, then a 4 for the E. Another Genius Alchemist will make it not count. Finally you only need a 3 for the Curse thanks to Genius/Wild Storm. Or you can spam out your handful of attacks for all you care. Body of Souls should help in recycling Wild Storms and key attacks in your momentum.
It's actually a pretty fun deck.
Edit1: Removed 1 Acheron & Nirvana, 1 Dead 4 1K Years and 1 Body of Souls for 3 Mishima Zaibatsu Leaders.