I'm sorry if anyone mentioned it already, didn't noticed it and wanted to share. From the last Khorne FAQ: Q: Sometimes a keyword will be listed in its singular form in one place and its plural form in another. Are the plural and singular forms both considered to be different keywords? For example, are the Bloodletter keyword and the Bloodletters keyword different keywords? A: No. The singular and plural forms of a keyword are synonymous for rules purposes. So stegadon alpha officially affects both SKINK and SKINKS units. That's it.