Breath Weapon Macro?

So I'm trying to make a breath weapon macro for fire, and I was just hopping around and copy pasting... and I made this, but I get:  TypeError: Cannot read property 'substring' of undefined [[2d6 + 8 + @{CON_Mod} + @{PB} ]] - the macro in question

Do you have values for CON_Mod and PB?  You might want to include "selected|" to make sure you can pull the attribute value from a linked token [[2d6 + 8 + @{selected|CON_Mod} + @{selected|PB} ]]

Vince said: Do you have values for CON_Mod and PB?  Unless this a token ability macro or placed directly within the character sheet, you might want to include "selected|" to make sure you can pull the attribute value from a linked token [[2d6 + 8 + @{selected|CON_Mod} + @{selected|PB} ]] I'm not sure what you mean, this is my first time setting up a macro so I'm a bit confused.

Which sheet are you using SolLuna?&nbsp; Make sure your token is properly linked to the sheet.&nbsp; <a href="https://wiki.roll20.net/Linking_Tokens_to_Journals" rel="nofollow">https://wiki.roll20.net/Linking_Tokens_to_Journals</a> Sometimes example macros do not match your sheet's particular attributes.&nbsp; Verify you actually have CON_Mod and PB as attributes on your sheet. ( attributes &amp; abilities tab of the character journal)

I suspect that conmod and pb were attached to the character sheets proficiecy bonus and constitution mod

What Character Sheet are you using?