Hey guys,

I've got an idea for an encounter for my players heres the pitch: 

6, 11th  level players a monk, a paladin, a barbarian, a druid, a warlock, and a sorcerer (possibly another player as a wizard but im not counting on it) its the boss for the end of one of the monks player arc.

Pit fiend + erinyes + other minions (cult people/smaller summoned devils)

have limited the pit fiend to 1 attack but have given him 4 legendary actions and i want ideas of what he can do some ideas include:

eats some minions to gain health

summons more minions

makes a frenzy of attacks

i want to get some other ideas though anything from you guys?

Hes based inside a dormant volcano maybe he could have some lair actions to?

Thanks!

idk if the volcano should be dormant; might be much more exciting if the fiend magically activates it. you could wholesale steal the red dragon lair actions to suit this purpose

Yeah I thought to do something like it reactivates halfway through but the red dragon lair actions is a great idea thank you!! :D

The 4e Pit Fiend had some interesting ideas: 

• Poisonous sting with the tail 

• Commanding summoned devils forward and then detonating them 

Some other ideas crazy ideas: 

• As a reaction to enemies stepping out of melee range, the out fiend could create a 5’ wall of flames. He could use it to keep opponents within range of his melee attacks. 

• Alternatively, a reaction to a ranged attack: create a 5’ cube of smoke within 20 feet. This could be used to block the shooters line of sight. 

I had this idea a while ago. As a legendary action a pit fiend could summon 1d4 lesser devils (Up to your choice).