This is a FANTASTIC deck. I love the golgari as it was the second guild that I felt most comfortable with when playing in ravnica. My only concern is that the deck does not perform at its best. I recommend making this commander deck mostly golgari cards from the new ravnica block that do not have the scavenge effect (because you want to resurrect your creatures and not
exile them). Creatures such as
corpsejack menace would be good for +1/+1 counter making and provide strength to you for the deck's sake. Also If you incorporated actual Jund cards to this deck without using the red then it would have more flavor and stick best to it's theme of kill or be killed...and force to kill anyway. Beasts, dragons, plants and zombies would all be good recruits for this deck with the graveyard recursion being at a maximum. Also if you side bard or even main board some hand disruption and deck destruction black spells this would be lethal monster of a deck. Just some things to keep in mind as you play.