Rift Walker
Make a Spellcast Roll (15). On a success, you place an arcane marking upon the ground where you currently stand. The next time you successfully cast Rift Walker, a rift in space will open up, providing safe passage back to the exact spot where the marking was placed. You may drop the spell at anytime to cast Rift Walker again and place the marking somewhere new.
This rift stays open until you choose to close it or you cast another spell.