I remember on more than one occasion getting a sweet life boost by attacking with Harvester, giving it lifelink, and when it came through unblocked targeting it with Spatial Contortion
Good in a dedicated mill deck, but narrow otherwise
Theres also a space for legends and +1/+1 counters this might be a good Golgari commander for, including cards like Reyhan, Last of the Abzan, Grakmaw, Skyclave Ravager, Polukranos, Unchained, Rishkar, Peema Renegade, Kodama of the West Tree, Renata, Called to the Hunt, and plenty of others
Phoenix, Warden of Fire (Legendary Enchantment Creature Saga Phoenix) 1 and 2) Rising Flames Phoenix deals 2 damage to each opponent
Or you could just blow up all your creatures with Fell the Mighty and get those Sanguinary Priest triggers instead
Fumulus, the Infestation Fumulus, the Infestation helps out sacrifice decks by turning any real creatures you sacrifice into a second body for cards like Goblin Bombardment and Ashnod's Altar