2
votes
5answers
167 views

How to calculate the expected damage increase from Empowered Spell?

In D&D 5th Edition the Sorcerer Metamagic ability Empowered Spell states the following: "When you roll damage for a spell, you can spend 1 sorcery point to reroll a number of the damage dice up ...
12
votes
3answers
718 views

How much damage does Great Weapon Fighting add on average?

The Great Weapon Fighting Fighting style states the following: When you roll a 1 or 2 on a damage die for an attack you make with a melee weapon that you are wielding with two hands, you can ...
2
votes
1answer
114 views

How do you calculate the odds of success for an ability contest

I'm having a hard time understanding how to figure out the odds of success from an ability contest. I originally thought that each +1 would be 5% but anydice suggests 4% but only after a +1 ...
0
votes
2answers
274 views

How do you calculate an average damage when damage is conditional on circumstances?

I'm trying to compare two rogue builds to each other. The first rogue is easy. It's a wood elf with a long bow in a wilderness campaign, doing 1d8+mod damage and always being hidden with SA damage. ...
62
votes
3answers
6k views

How does rolling two dice and taking the highest affect the average outcome?

D&D 5E has an "advantage" concept where instead of rolling 1d20, you roll 2d20 and take the highest. Likewise, disadvantage means rolling 2d20 and taking the lowest. How does this affect the ...