The Coven Overthrown Maghda is a
She is quite easy, and a little annoying.
Here are some moves she uses:
Spit- low damage
Swarm of flies- Average damage
Vessels of Chaos
Summoning- every 25% of life lost she will summon Dark Berserkers and cultists.
Any other information on Maghda you can read on the Diablo Wiki:
http://diablo.wikia.com/wiki/MaghdaEveryone has their strategy to beat her, working in a group is the best way to go because as long as someone stays alive everyone can continue to respawn fighting her, if you are alone and die then you have to start from beginning.
Video done by UKxJOK3Rx