Custom monsters can be created from the encounter builder to include in combat encounters. For more information on creating encounters, see Creating Encounters.
To open the monster builder, click create a monster from the Custom tab.
A custom monster's hit points are calculated based on their Constitution score modifier, number of hit dice, and hit die value. The equation for this is (rounded down):
$$ (die\ average * num\ hit\ dice) + (CON * num\ hit\ die) $$
For example: the Chimera has with 12 hit dice, a d10 hit die, and +4 CON, so their average hit points would be:
$$ (4.5 * 5) + (2 * 5) = 114 $$
The average hit points for a monster is automatically assigned to the monster when running combat using the encounter tracker.
After a custom monster has been created, it can be accessed in the encounter builder from any adventure, and can be used in any encounter.
<aside> 💡 Custom monsters will remain available even if an encounter, or any adventure a monster is used in is deleted.
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When adding actions, or legendary actions, any text that matches a dice roll format (ie, 2d12 or 3d6 + 4) will automatically be converted into a clickable button that will make a dice roll for you.
When adding actions, or legendary actions, any text that matches a spell from the compendium (ie, fireball or shield of faith) will automatically be converted into a clickable button that will show you details about that spell.
