EDIT: The workaround below still works, but there is a new and better workaround that became possible with the API upgrade of JavaScript. You can find it here . or: "How can I send my barbarian into a rage?" As detailed in several threads,[ 1 ][ 2 ] as well as the Sheetworker bug thread , toggling the checkbox on Global Damage modifiers using the API does not actually turn the modifier on or off. It just changes the state of the checkbox. So until this gets fixed, I present this incredibly lame workaround. :) I'll use Barbarian rage for the example, but the principle can be applied to Hunter's Mark or other abilities. Note: I have an improved version of this a couple of posts down. 1. Create a custom attribute on your barbarian character called "Raging". This will hold a value of 0 or 2. 2. Create token abilities (sheet macros) on the sheet called Rage-On and Rage-Off: Rage-On: !setattr --sel --silent --evaluate --Raging|2 !token-mod --set statusmarkers|strong /em flies into a terrifying rage! !setattr --sel --silent --evaluate --repeating_damagemod_$0_global_damage_active_flag|1 Rage-Off: !setattr --sel --silent --evaluate --Raging|0 !token-mod --set statusmarkers|-strong /em calms himself. !setattr --sel --silent --repeating_damagemod_$0_global_damage_active_flag|0 Line 1 Toggles the rage damage value in the attribute "Raging" Line 2 puts a status marker on the token to remind you that your character is ticked off. Line 3 puts an emote in chat to let others know he is murderously upset. Line 4 toggles the Global Damage Mod flag so a casual glance at your sheet will confirm that your character is not at all happy. 3. In each of your weapons, in the damage 1 field add this to the damage: +@{Raging}[Rage] When you use that weapon the rage damage will be calculated as part of the base damage for the attack. It will work properly for criticals and will be part of the total. It will display on a hover, like other damage calculations: And yes, my barbarian character is named Marmaduke Gallant. Why do you think he's so angry?