Nimbus

Nimbus is a shadow mastiff summoned via the Shadow Magic sorcerer's  Hound of Ill Omen ability.

Combat

 Ominous Bite ()

Damage: 3~18

3d6⁠Piercing

Bite a target and possibly place an  Omen on them.

 CON Save

 Melee: 1.5 m / 5 ft

 Umbral Tangle ()

Damage: 2~12

2d6⁠Necrotic

Trap your enemies in shadowy vines.

On a successful save, the target still takes half damage.

 STR Save

 Range: Self

 Splinter Shadow ()

When you are attacked by a melee attack that does not deal Radiant damage, splinter off a piece of yourself to spawn a new version from the shadows.

Additionally, when moving adjacent to a friendly  Accursed Spectre, Nimbus gains the  Shadow Infusion condition which grants a special reaction from the spectre until the next long rest. The reaction is triggered when the summoner hits a target with a melee weapon attack.

 Right Behind You ()

Damage: 1~12 + modifiers

1d12 + Summoner's Charisma modifier⁠Necrotic

Materialise next to your summoner's victim.

 Range: 18 m / 60 ft

Notes

• Despite Ominous Bite being a weapon attack,  Elixir of the Colossus and other weapon damage modifiers don't apply to it.
  • Instead, some elixirs which are effective on Nimbus are the  Elixir of Battlemage's Power,  Elixir of Bloodlust, and  Elixir of Vigilance.