Rukarumel, Biologist is the back-up commander of the deck, and it turns most creatures you control into the type of your choice
Ive dabbled in black/green Golgari myself and I can tell you from personal experience that having the ability to throw cards into your graveyard is a boon
[II] [III] Brimstone Add RRRR
Cataclysmic Gearhulk Vigilance When Cataclysmic Gearhulk enters the battlefield, each player chooses from among the non-land permanents he or she controls an artifact, a creature, an enchantment, and a planeswalker, then sacrifices the rest
In fact, it's even been made into its own mechanic where players can waterbend, earthbend, firebend, and airbend for specific effects
The art on V Pokmon cards is exceptional