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Help with custom dice roll for specific weapons?

So far my attempts to figure out how to apply a custom dice roll for a weapon has failed.  We're using the 5e Darker Dungeons character sheet, but I think it is based off the OGL sheet.  Here is what I'm trying to do.

A character has a magic weapon that grants an additional die to hit if they have advantage.  Thus the attack would be best of 3d20 instead of best of 2d20.  This is very similar to Elven Accuracy.  Here is what we've tried so far:  

  1. At the top of the character sheet, we have the tabs enabled to display Advantage/Normal/Disadvantage.  One option I tried as to add a 4th tab for Elven Accuracy.  Though unfortunately the posts I found didn't seem to work with the Dark Dungeons sheet, or I simply couldn't figure out how to properly implement it.  If this is possible, I'd still be curious to try this.
  2. The next thing we tried was to add a query (dropdown) every time a roll is made to ask for advantage, disadvantage, and in this case, "super advantage/elven accuracy".  This worked, but slowed down rolling because of the extra clicks and macro execution delays.  It also meant getting rid of the advantage/disadvantage tabs at the top which simplified rolling.  So this option wasn't the best.
  3. The third and current option I'm exploring is how to add a macro to the attack/weapon field to enable to weapon to roll 3d20k1 instead of 2d30k1.  But I haven't been able to find an example, and was wondering if it is even possible to do it for a specific attack/weapon?

So, I was hoping someone might be able to point me to a useful reference or example, or suggest how to best go about solving this.  Many thanks.  


July 23 (5 years ago)
GiGs
Pro
Sheet Author
API Scripter

I'm not familiar with the sheet, but I dont think you'll be able to change the way the attack roll works.

I suspect what you'll need to do is create a separate Ability for this attack on the attributes & abilities tab. Make an attack with the current weapon so you can use the (put mouse in chat, click up arrow" trick to get the last attack made. Copy that text into an ability, then change it to suit your needs.