Leveling with the ebony wand:

1. Right click on ebony wand, Item → Set Data. Change Auxdata to 1.
2. Bind a key to level.
3. Stand on a flat surface and level a tile, or a corner and a tile border.

NOTE: Auxdata 1 is actually sand. For some reason, you cannot level up where dirt is required in inventory using your ebony wand with the Auxdata dirt setting (2), so you must use sand (1). Sand will let you level without the need for dirt on hand.