Mob Rules

Groups of enemies can be summed up as mobs. Mobs can have between 3 and 30 individuals. Each part of the mob must have the same size category, must use the same movement type (walking, swimming, flying, …) and have the same danger rating. No creature within a mob can be a foe of another creature within the same mob. A creature cannot be part of a mob if they are more than 5 feet away from the mob. A creature can use 1 action to join a mob. While part of a mob, a creature does not have individual actions, bonus actions, movement speeds or reactions. Instead, the mob itself has stats that it uses.

Mob Stats

Initiative.

The mobs initiative equals the highest initiative among the creatures within the mob.

Speed.

The mobs speed equals the slowest speed among the creatures in the mob.

Weapon Attacks.

The mob has advantage on attacks. It has a base attack bonus equal to the lowest attack bonus among the creatures within the mob. This bonus is increased by the number of creatures within the mob divided by 5 (rounded down).

Weapon Damage.

The weakest weapon with the lowest range within the mob is used as Basis for the damage. This damage is increased by +1 per 5 creatures within the mob. 1 size die is added to the damage per 5 creatures within the mob (For example: A mob of 14 medium creatures has a damage bonus of + 2 + 2d8).

Actions.

The mob has as many actions as the creature with the lowest number of actions within the mob.

Attacks.

The mob has as many attacks as the creature with the lowest number of attacks within the mob.

Reaction.

The mob has 1 Reaction.

Ability scores.

Each ability score of the mob equals the highest ability score of any creature within the mob.

Proficiencies.

The mob has every proficiency of all creatures within the mob.

Armor Class.

The base AC of the mob equals the lowest AC of creatures within the mob. The mob has -1 AC for every 5 creatures within the mob (a mob of 12 creatures has its AC reduced by 2).

Hit Points.

The mobs maximum HP and current HP equals the HP of every creature within the mob.

Sensory feats.

The mob has a sensory feat if at least one creature within the mob has that sensory feat (like dark vision or true sight).

Normal feats.

The mob has only the feats that at least 50% of the creatures within the mob share.

Additional Mob Rules

Ability Checks.

Mobs have advantage on strength checks and saving throws, but disadvantage on dexterity checks and saving throws.

Losing Hit Points.

Note the highest hit points of the member of the mob that is not a Mob Leader. Every time the mob loses that amount of hit points one member of the mob – which is not the leader – dies. If the hit points of the mob reach 0, every member of the mob dies.

AOE and Multiple Target Damage Income.

Attacks that can hit multiple targets multiply their damage for each creature within the mob they hit.

Targeting a specific creature.

Targeting a specific creature within the mob decreases the attack roll by 1 per 5 creatures within the mob.