List of features that work in Slayer Form

This page is about the features that do or do not work in Slayer Form. For details on the stats and abilities of the Slayer, see Slayer.

Most equipment, many feats, and some class passives do not work while transformed into the Slayer. This list clarifies what works and what does not work.

General Information

• The player character can't cast spells while in Slayer Form, and can't take any action outside of those available to the Slayer. Actions will only be mentioned in this article if their effects persist after transforming.
• The player character's equipped items are merged into their Slayer form and most of them do not have any effect until they revert back. If any equipment is not listed here then it does not work in Slayer form.
• Slayer Form replaces all six of the player character's stats with those of the Slayer. This article notes any exceptions when permanent bonuses or feats actually do change those stats while in Slayer form.

What works in Slayer Form

Class Features

•  Defence Fighting Style (if you were wearing armour before transforming).
• Barbarians's  Rage (must be activated before transforming).
  • Beserker's  Frenzy (must be activated before transforming).
  • Wildheart's  Rage: Bear Heart (must be activated before transforming).
• Circle of the Land Druid's and Wildheart Barbarian's  Land's Stride: Difficult Terrain,  Land's Stride: Advantage, and  Land's Stride: Plants
• Fighter's  Action Surge (must be activated before transforming).
• Ranger's  Wasteland Wanderer: Cold,  Wasteland Wanderer: Fire, and  Wasteland Wanderer: Poison
• Ranger's  Land's Stride: Difficult Terrain, and  Land's Stride: Plants
• The Fiend Warlock's  Dark One's Blessing
• The Great Old One Warlock's  Mortal Reminder
• Thief's  Fast Hands
• Thief's  Second-Story Work
• War Domain Cleric's  War Priest

Equipment

• Shapeshifter's Boon Ring

Illithid Abilities

• •  Ability Drain
  •  Cull the Weak

Permanent bonuses

• Permanent stat bonuses such as those provided by Hag hair, Potion of Everlasting Vigour, or Mirror of Loss.
• Permanent conditions (e.g.  See Invisibility from Volo's Ersatz Eye).

Potions and Elixirs

• Most potions and elixirs.

Races

• Most racial passives (e.g. Dwarves'  Dwarven Resilience).

Temporary bonuses

•  Dark Lady's Awareness,  Dark Lady's Erudition, and  Dark Lady's Grace

What partially works in Slayer Form

Class Features

• Circle of the Spores's  Symbiotic Entity (The temporary hp persists but the additional Necrotic damage does not work).

Feats

•  Tavern Brawler (The attack roll bonus does work but the damage roll bonus does not).

What does not work in Slayer Form

Class Features

• Barbarian's  Unarmoured Defence
• Draconic Bloodline Sorcerer's  Draconic Resilience
• Monk's  Unarmoured Defence
• Monk's  Ki-Empowered Strikes
  • Way of the Open Hand's  Manifestation of Body,  Manifestation of Mind, and  Manifestation of Soul.

Equipment

• Almost all equipment in the game.
  • Armour that works in  Wild Shape such as Armour of Moonbasking
  • Mutilated Carapace

Illithid Abilities

•  Charm

Races

• Racial passives that reduce movement speed (i.e. Shortened Stride).