It seems that those bloody skins don't seem to heal like the elf or dwarf ones (dwarf for mundunugu). Is that intentional, as if I killed another orc, I can use its skins to heal.

>It seems that those bloody skins don't seem to heal like the
>elf or dwarf ones (dwarf for mundunugu). Is that intentional,
>as if I killed another orc, I can use its skins to heal.

In part, what the heck bloody skins are you talking about? Randomly using locate to guess, the best guess I could make are if you're talking about the one Globsard the warboss has? If not, you definitely need to give more detail. If an orc has an elf-blood skin, then sure, you can use it to heal, but if he's exsanguinating humans or giants, it'll create a bloody skin that doesn't heal.

There are a number of factors that could vary the efficacy of a bloody skin (target race, the creator, et al.).