The mutalisk's attack is still able to strike multiple targets, bouncing to strike up to two additional targets as in StarCraft.[1] The attack automatically bounces towards the next closest enemy.[2]
Mutalisks are able to stack quite well[3] but it is difficult for them to remain clumped.[4] Mutalisks spread out when they move or attack.[5] With some micromanagement, mutalisks are able to attack on the move as before.[6][7]
Overall, mutalisks are more versatile than corrupters, due to their ability to raid, harass and decimate opponents without anti-air capablities. Alternatively, the corrupter is strictly an anti-air unit.[9]
Mutalisks lost the ability to morph into anti-ground flyers because the anti-air corruptor became "useless" once the zerg player had "swept the sky". The corruptor needed the morph more.[10]
There has been some community concern about the effects of massed mutalisks against protoss. Blizzard is currently deciding whether a change is truely necessary.[11]
↑ There has not been extensive testing of this yet, but in terms of Mutalisks, players will be able to stack, but it will be much harder to keep them clumped up. As more info surfaces about this, I will keep you informed. Karune. 2008-08-28. Karune About stacking!!Battle.net StarCraft II General Discussion Forum. Accessed 2008-08-28.
↑ Also, Mutalisks at first in StarCraft II while slowed down a bit before they attacked, but the code has been fixed to allow it to attack on the move like the original StarCraft. Karune. 2008-08-28. Karune About stacking!!Battle.net StarCraft II General Discussion Forum. Accessed 2008-08-28.
↑ Thors and Marines (with stimpack and the additional hp upgrade) are quite effective against mass Mutalisks. Additionally as mentioned already in this thread, BCs are also very effective, especially with its new missile barrage ability (but of course this is at a later tech). Groups of stalkers are also lethal against mutalisks. Ghosts are good at taking out mutalisks as well, since they get a bonus to light armor, and have a very long range. Add that to snipe, cloak, or a bunker and it is quite a formidable counter as well. Karune. 2008-11-05. Karune, how is Terran air vs Zerg air?Battle.net StarCraft II General Discussion Forum. Accessed 2008-11-05.