Variant AC extension?

[Whaley]

Hey all, I was wondering if there was an extension for the variant AC rule where you get rid of the static 10 and roll a d20? If not does anybody know how to do it or could make it? Maybe a -10 AC +D20? Thanks

[Zacchaeus]

I can't say that I've heard of such a variant. Are you saying that instead of base 10 you roll a d20 and then add your armour and dex modifiers? If so wouldn't that make some character basically impossible to hit if they roll high?

There isn't a way to automate it but you could override the AC by entering a figure in the Misc box of the combat calculation dialog. (So if someone rolled 15 add a +5 into the modifier - if they rolled 2 then put a -8 into the modifier).

[Trenloe]

I’m not aware of anything like this for 5E. Someone created a base extension for this in 3.5e (actually, in response to a similar question you asked for that ruleset) here: https://www.fantasygrounds.com/forum...atic-10-for-AC

Maybe you could take that extension, and the process discussed in that thread, and make one for 5E?

[LordEntrails]

I can't say that I've heard of such a variant. Are you saying that instead of base 10 you roll a d20 and then add your armour and dex modifiers? If so wouldn't that make some character basically impossible to hit if they roll high?

There isn't a way to automate it but you could override the AC by entering a figure in the Misc box of the combat calculation dialog. (So if someone rolled 15 add a +5 into the modifier - if they rolled 2 then put a -8 into the modifier).

The desire is to re-calculate AC on every attack roll. So every attack becomes an opposed roll. Makes metagaming harder to do.

[Zacchaeus]

The desire is to re-calculate AC on every attack roll. So every attack becomes an opposed roll. Makes metagaming harder to do.

Hmm, well that would require something quite substantial I think since FG doesn't really handle opposed rolls. You can't even create an effect which would handle that since the AC modifier doesn't accept dice strings - only numbers. I can't really think of any way to do that without rolling everything manually.

[Whaley]

I will see if that would work, didn't think about that one since it was not 5e...

[Whaley]

I can't say that I've heard of such a variant. Are you saying that instead of base 10 you roll a d20 and then add your armour and dex modifiers? If so wouldn't that make some character basically impossible to hit if they roll high?

There isn't a way to automate it but you could override the AC by entering a figure in the Misc box of the combat calculation dialog. (So if someone rolled 15 add a +5 into the modifier - if they rolled 2 then put a -8 into the modifier).

Yeah it's one of the official 5e variant rules. Instead of havi g a 10 base AC you have a d20 base AC. my group loves it. They hate getting hit on a 7 and missing on a 25 but it balances out so they also hit on a 7 so it works, plus I make them describe how they party, dodge and whatnot so combat is more descriptive.

[JohnD]

...I make them describe how they party, dodge and whatnot so combat is more descriptive.

[Zacchaeus]

Yeah it's one of the official 5e variant rules.

Where can I find this? I've gone through my DMG and I can't see it anywhere.

[Whaley]

Where can I find this? I've gone through my DMG and I can't see it anywhere.

https://media.wizards.com/2015/downl...riantRules.pdf