Theros ready, post-rotation Grixis.
Ashiok, Nightmare Weaver: 3 drop planeswalker that gets out early, and impacts the game. Mills opponents cards, and can even theoretically bring out their big hitters by turn four (ex: Stormbreath Dragon)
Chandra, Pyromaster: burns, opens up the field for Master of Cruelties poke, card draw.
Jace, Architect of Thought: Card draw, defensive help, and his ultimate will win games.
Jace, Memory Adept: my personal favorite planeswalker, offensive Jace. Card Draw. If left uncontested his mill ability will have any opponent in a very tight bind.
Ral Zarek: His tap ability can tap blockers, and keep lands untapped for me to play spells. Also his -2 can finish games after a master poke, or kill creatures. His ultimate will simply allow me to take over a game beyond comeback.
If the Legion of Doom is ever assembled, opponents really cant deal with the power of multiple planeswalkers.
Frostburn Weird
: Powerful two drop that survives Anger of the Gods as well as a good blocker, and matches up well with lots of early game creatures, pump up can finish games.
Master of Cruelties: very cruel indeed, probably the greatest way to win a game, and maybe the biggest threat in this deck. 1 poke, 1 life.
Anger of the Gods: Kills every small creature so this is great against aggro, also it exiles voice's. The 3 damage usually keeps the bigger guys weak enough to burn.
Dreadbore: Kill card. Creature or planeswalker.
Rakdos's Return: Hand control, as well as burns. Can win games easily if the deck is played smoothly.
Thoughtseize: Early hand control, and lets me spot strategies before they hit the table.
Cyclonic Rift: Really takes care of any pesky problem, especially anti-attack enchantments on the Master, overload can turn the tide of a game fast.
Doom Blade: Instant speed kill.
Far / Away
: Kill/Field control. Pretty much explains itself.
Opportunity: Card Draw. Grixis version of Sphinx.
Shock Creature Kill, or even game finisher after a poke.
Rakdos Keyrune: Mana helps out in situations, also can become a mean 3/1 first strike creature.
