* Can not be used in deep water.
* Can be used to raise a corner until it is 26 slope, after that it is too steep to add.
* Reported to work to 40 slope (1-7-2016) similar to dirt.* Can not be used on any corner of a cliff tile regardless of slope.
* If used to raise the corner of a surface rock tile, the surrounding area must also be rock.
[[Category:Babel/C]]