Reduced-Threat Monsters

From Tales From the Yawning Portal, page 113.

A reduced-threat monster uses a normal monster's statistics, but it has half the normal hit point maximum and takes a -2 penalty on attack rolls, ability checks, saving throws, and saving throw DCs.

A reduced-threat creature that is based on a creature bigger than Large is instead Large. Some specific reduced-threat creatures also make changes to the abilities they can use. A reduced-threat creature is worth half the normal XP earned for defeating it.

List of Reduced-Threat Monsters

 * Reduced-Threat Aboleth
 * Reduced-Threat Basilisk
 * Reduced-Threat Behir
 * Reduced-Threat Beholder
 * Reduced-Threat Black Pudding
 * Reduced-Threat Carrion Crawler
 * Reduced-Threat Clay Golem
 * Reduced-Threat Darkmantle
 * Reduced-Threat Displacer Beast
 * Reduced-Threat Dragon Turtle
 * Reduced-Threat Ettercap
 * Reduced-Threat Flesh Golem
 * Reduced-Threat Glabrezu
 * Reduced-Threat Gray Ooze
 * Reduced-Threat Helmed Horror
 * Reduced-Threat Hezrou
 * Reduced-Threat Hook Horror
 * Reduced-Threat Ochre Jelly
 * Reduced-Threat Otyugh
 * Reduced-Threat Owlbear
 * Reduced-Threat Peryton
 * Reduced-Threat Remorhaz
 * Reduced-Threat Stone Golem
 * Reduced-Threat Vrock
 * Reduced-Threat Wight
 * Reduced-Threat Wyvern