Color: Green creature (Golgari guild)
Location: Golgari turf.
Action: Show us a "mossdog" except this one is covered in long, snaking vines. Show it emerging from a cave mouth. The cave is actually an ancient crack that has opened up in the foundation of a massive ruined building. Vines from the back of the mossdog are reaching all around it like some kind of octopus. Perhaps one of the vines has snagged a large bird and is bringing it to its mouth to devour. Feel free to evolve the physiology of the creature but keep it recognizable as a mossdog.
Focus: The large mossdog.
There are two other Mossdogs in Magic. Each mossdog comes from a different set and though they are most well known on Ravnica, the first wasn't even from this plane!