Early stage of my cube that makes use of Conspiracy (I&II) cards and the Theros Hero cards.
Hero cards included: The Protector, The General, Spear of the General, The Philosopher, The Savant, Cloak of the Philosopher, The Avenger, The Tyrant, Lash of the Tyrant, The Warrior, The Warmonger, Axe of the Warmonger, The Hunter, The Provider, Bow of the Hunter, The Harvester, The Explorer, The Destined, The Slayer, The Vanquisher, The Champion. 21 hero cards total.
Current thoughts - Decided to change the Simic theme to +1/+1 counters instead of flash AND change Golgari to -1/-1 counters instead of +1/+1 counters.
Azorious: Blink, Mistmeadow Witch , Vanish into Memory , AEthermage's Touch , Deputy of Acquittals , Brago, King Eternal
Dimir: Theft, Ashiok, Nightmare Weaver , Extract from Darkness , Silent-Blade Oni , Nightveil Specter , Psychic Intrusion
Rakdos: Unearth, Shambling Remains , Underworld Cerberus , Kathari Bomber , Tymaret, the Murder King , Torrent of Souls
Gruul: Devour, Dragon Broodmother , Hellkite Hatchling , Gorger Wurm , Thromok the Insatiable , Dragonlair Spider , Bloodbraid Elf
Selesnya: Populate, Mercy Killing , Advent of the Wurm , Trostani, Selesnya's Voice , Wayfaring Temple , Emmara Tandris
Orzhov: Enchantments, Underworld Coinsmith , Pillory of the Sleepless , Blood-Cursed Knight , One Thousand Lashes , Gift of Orzhova , Odunos River Trawler
Golgari: -1/-1 counters, Hapatra, Vizier of Poisons , Decimator Beetle , Canker Abomination , Hazardous Conditions , Quillspike
Simic: +1/+1, Zameck Guildmage , Plaxcaster Frogling , Vigean Hydropon , Krasis Incubation , Experiment Kraj
Izzet: Prowess, Stormchaser Mage , Goblin Electromancer , Dragonshift , Steam Augury , Hypersonic Dragon
Boros: Artifact, Jor Kadeen, the Prevailer , Sunforger , Akiri, Line-Slinger *f-etch* , Flamewright , Weapons Trainer , Boros Keyrune , Court Homunculus