Exodus Knife - Level 12 Uncommon
This insubstantial silver blade appears to cut through solid walls.
Wondrous Item 13,000 gp
Power - Daily (Standard Action)
When you use the exodus knife to trace a doorway onto a solid object, it opens a portal into an empty extradimensional space 4 squares wide, 4 squares high, and 4 squares long.
While the door is open, anyone can enter, see into, or affect the extradimensional space. Only creatures inside the space can open or close the door (a minor action). Once closed, the door becomes invisible to anyone outside the extradimensional space. Cre…