Have you looked at the wiki's entry on nested macros? Also, currently that macro is calling an attribute. Did you save your spotcheck as an attribute (left hand side of the attributes and abilities tab), an ability (right side), or as a global macro (under the collections tab in the right menu pane where the chat is)? Attributes are accessed by @{keyword|AttrName} Abilities are accessed by %{keyword|AbilityName} (note the keyword is always required for abilities, whether you use a character's name, selected, or target) Global macros are access by #MacroName Also, for the chat to do the math you need to mark it as a roll by either putting /r (or /gmroll if it's going to be whispered to the gm) or wrapping your expression in inline roll brackets ([[ ]]).