Heartless Regisaur (by Ryan from Maine)

"Heartless Summoning is the core of the list and helps you power out big midrange creatures that are just slightly smaller due to the cost. The creatures are still fairly large, though, and allow you to play The Great Henge at a reduced cost. The creature base is pretty much the same as the original list with the addition of Regi. In combination with Heartless Summoning, Regi is a 6/5 creature that costs just a single black mana to cast. The other modification to the creature base is that it includes 4 Wayward Swordtooth and 0 copies of Azusa, Lost but Seeking. Swordtooth is slightly underpowered, however, it has a much larger body which works better with The Great Henge." -Ryan from Maine