mal'ganis, galakrond hand lock

This is the deck I'm working with, its pretty bad but I'm trying to play galakrond with going 100% zoo and more handlock, I learned that expired merchant goes well with this as you can get an extra fully upgraded galakrond at 10 mana if you mortal coil it. If you have any suggestions to improve this, that would be good (I'm not sure about the doomguard and dreadlord or if I need two merchants to be replaced with spells of hand size to 12 legendary)