From MTG Wiki
The Dwarven Gate was a planar portal beneath Castle Sengir that led from Ulgrotha to an unknown plane. Baron Sengir wished to conquer Ulgrotha, then march his troops through the portal to take whatever was on the other side.
Sources[edit | edit source]
- D.G. Chichester (February, 1996) "Homelands" (comic)
- Scott Hungerford and Kyle Namvar (June 14th, 1995), "Backstory for Magic the Gathering: Homelands"