It costs less the more creatures you attack with, has flash so you can cast it during combat or even defensively, auto-equips when it comes into play, and gives your creature +1/+1, double strike, and trample
Cards like Cosmos Charger and Ranar the Ever-Watchful let you reduce the costs to foretell a card
Bladestitched Skaab Curious Cadaver Dee Kay, Finder of the Lost Diregraf Captain Dralnu, Lich Lord Fallen Shinobi Gleaming Overseer Grimgrin, Corpse-Born Havengul Lich Jhessian Zombies Lazotep Chancellor Lazotep Convert Lich Lord of Unx Master of Death Narfi, Betrayer King Olag, Ludevic's Hubris Possessed Skaab Prized Amalgam Raul, Trouble Shooter Siren of the Silent Song Skull Skaab Soul Diviner Tomebound Lich Vedalken Ghoul Venser, Corpse Puppet Vodalian Zombie Wilhelt, the Rotcleaver Zombie Outlander
Jund has proven as much in Modern for many, many years