Guide to Rolling
For the Obsidian Portal character sheets, you roll a d20 and add the number listed with that ability. On OP, your ability modifier and proficiency bonus have already been added together.
Roll a d20 + your strength modifier + your proficiency bonus if you are proficient with the weapon you are using.
Caveat: If you are using a weapon with the finesse trait, you may substitute your dexterity modifier instead of your strength modifier
- Short Sword
- Spiked Chain
Roll a d20 + your dexterity modifier + your proficiency bonus if you are proficient with the weapon you are using.
Caveat: If the weapon has the thrown trait, use your strength modifier instead.
Spells that require you to hit: Most damaging spells require you to hit the target to deal damage. Examples: Eldritch Blast, Firebolt, Witch Bolt
Roll a d20 + your spellcasting trait’s modifier + your proficiency bonus
WIS: Cleric, Druid, Ranger
INT: Arcane Trickster (Rogue), Eldritch Knight (Fighter), Wizard
CHA: Bard, Paladin, Sorcerer, Warlock
Other spells don’t require you to roll to hit. Examples: Magic Missle, Shatter, Protection from Evil, Cure Wounds
Caveat: For a sorcerer, each spell of 1st level or above requires you to roll a d20 on the Wild Magic Surge table if your spellcasting background is Wild Magic. It is good practice to always roll an extra d20 when casting a spell, just in case it is needed for Wild Magic surges.
Roll the damage die for the applicable weapon + your strength modifier.
Caveat: If you are using a weapon with the finesse trait, you may substitute your dexterity modifier instead.
Roll the damage die for the applicable weapon + your dexterity modifier.
Roll the dice as described by the spell. You don’t add anything unless you have a special ability such as a Warlock invocation.
The DM will tell you what type of saving throw to make.
Roll a d20 + the stated ability modifier + your proficiency bonus if you are proficient in that type of save.
Opposed Saving Throws
Sometimes you need to provide the difficulty level of an opponent’s saving throw. This is most commonly used to save against the effects of your spells.
Your save DC is: 8 + the applicable ability modifier + your proficiency bonus
For spells, the applicable ability modifier is your spellcasting trait. See the above list.
The DM will tell you what type of ability check to make.
Roll a d20 + the ability modifier for that type of skill + your proficiency bonus if you are proficient in that ability.