This question already has an answer here:

The Bone Devil, when using the Devil Summoning Variant, has the ability to attempt to Summon Devil (1/Day).

Having a read through the appropriate page on themonstersknow.com it discusses the idea that it makes the most sense to attempt this on turn 1.

This means we have a scenario were the Bone Devil succeeds on the summoning and now has (on average) 7 spined devils fighting with them.

How does this effect the encounter difficulty? Is it as simple as going from a 5,000 XP encounter to a 8,150 XP encounter (adjusted 16,300)?

The CR level given to the Bone Devil, does this include this scenario or is it seperate?


marked as duplicate by Rubiksmoose dnd-5e May 5 '18 at 13:15

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.