Im usually asked for very literal magic spells or creatures and warriors, but this assignment was a very abstract concept in comparison to the norm
Release the Dogs and Pledge of Unity = Instant battlefield presence
If you were running Skullclamp or Necropotence as huge card draw engines then the value of Unmask goes up a lot
Storm, Force of Nature is a 3/4 Mutant Hero with Flying and Vigilance, who costs 1 Generic, Green, Blue and Red (or Temur for all of you Tarkir fans)
Few of Magic: The Gathering's color identities are as aggressive and focused on dealing damage as the black and red pairing, Rakdos
For example, including a Druddigon in your deck means the Energy Zone will automatically provide and Energy during the game to compensate for the Energy requirement for Druddigons Dragon Claw attack