Spell: Two spirit net bugs

[Frumple]

1. The effect never wears off -- it creates a permanent warding rune that will not disappear. Neither sleeping, or waiting an extensive period will remove the effect.
2. Visual bugs. The generated runes visually overwrite anything they land on, including doors, trees, walls... the terrain is still there, but visually overwritten by the spirit net effect.

Attached is a character in an already somewhat messed up room, with the spell learned and set to hotkey 3. Simply move out of the room and cast at some empty space to see it in action.