Fun Golgari deck focused on 3 mechanics--Persist, Endures, and Devour.
Persist:
Murderous Redcap and Putrid Goblin both have Persist and will return to the battlefield when destroyed, but do so with a -1/-1 counter. Keep that in mind.... As an added bonus, the Redcap will harm your opponent each time it enters the field.
Endures:
Warden of the Grove gives all your nontoken creatures entering the field Endures X, with X equal to the +1/+1 counters on the Warden. +1/+1 counters cancel -1/-1 counters, so all of the Persist creatures will return without the -1/-1 counter, ready to Persist again. This also beefs up the damage the Murderous Redcap inflicts each time it enters tge field. With this, you could potentially sacrifice them over and over....
Sacrifice:
Vermin Gorger lets you sacrifice a creature to harm your opponent for 2 damage and heal you for 2. Wight of the Reliquary lets you sacrifice a creature to fetch a land, helping with mana ramp. To offer more sacrificial creatures, Desecrated Tomb will give you a token creature each time one of your Persistent goblins returns to the field.
Sacrifice Part 2 - Devour:
Here's where we get the heavy hitters. Mycoloth has Devour 2 and will create a saproling for each +1/+1 counter on it each turn. These can easily be sacrificed or used to overwhelm your opponents. Feaster of Fools can be cast real cheap using Convoke and also has Devour 2.
Card Draw:
Chalk Outline gives you a sacrificial creature and a Clue token, which lets you draw a card, each time a creature card leaves your graveyard, which your Persistent goblins and sacrifice outlets should have happening regularly.
Resurrection:
In case any of these components is destroyed before you have all the gears turning, Disentomb will give these creatures a second chance at ruining your opponent's day.
