4/5c Aggro deploys a high density of multicolor synergistic threats across all phases of the game. Day of Black Sun is your emergency board wipe when their diverse threats come down in waves. Harvester of Misery handles their key individual threats efficiently. Requiting Hex provides mid-game pressure and recursion. Soul-Guide Lantern disrupts any graveyard synergies. Deep-Cavern Bat is less effective when their plan is on-board pressure, Annul has limited relevant targets, and Wistfulness doesn't advance your game plan fast enough.