Mutalisks are a natural choice. The AI can individually control units to a super-human degree. Mutalisks are a harassment unit with a lot of potential upside wh

Mutalisks are a natural choice. The AI can individually control units to a super-human degree. Mutalisks are a harassment unit with a lot of potential upside when controlled properly. Mutalisks are cost/power balanced around a human's ability to use them. Since AIs extract disproportionate value from them, they're likely overpowered for AI play. The effect of AI control actually turns some aspects of game balance upside down. For example, Archons are normally considered an effective counter to Mutalisks (because of their splash damage). But AIs can exploit the Mutalisk's slightly superior range: http://www.youtube.com/watch?v=nNpy8Wnvf7g http://www.youtube.com/watch?v=nNpy8Wnvf7g In human play, Scourge are usually a decent way to handle large numbers of Mutalisks. Small numbers of Mutalisks can evade Scourge, but in large numbers they're forced to trade. Not when the AI gets involved: http://www.youtube.com/watch?v=f4dTVAATktY http://www.youtube.com/watch?v=f4dTVAATktY Here are Wraiths versus Hydras (normally a cakewalk for the Hydras): http://www.youtube.com/watch?v=NcjQhig88wE http://www.youtube.com/watch?v=NcjQhig88wE