Boon of Bountiful Health

Boon of Bountiful Health
Feat
Prerequisite: Level 19

You gain the following benefits.
Augmented Health.
When you gain Temporary Hit Points, increase the number of Temporary Hit Points you gain by 5.
Superior Recuperation.
When you spend one or more Hit Point Dice to regain Hit Points, you can instead use the highest number possible for each die.

Source: Forgotten Realms: Heroes of Faerûn (FRHoF), page 42