I'm running a 13th level evil campaign where the players' goal is to reach immortality through a ritual that I invented for this campaign.
The PCs need to collect the following ingredients to perform the ritual:
- A philosopher's stone done
- The heart of an Omnielemental ( once you kill the elemental he drops a gem containing its elemental powers )
- 4 pints of Planetar or Solar's blood
- Fang of an Ethereal Dragon
- Root of a Nightwist
I was starting to prepare some stuff for the encounter with the Planetar, and reading its stats, powers, spells it got me thinking. I don't think my players can beat one, even if they get there at the proper level (16).
I thought to change that part of the ritual but I can't find a monster that I like for it. I was looking for something "epic", a monster that has something to do with immortality, something that, as a player, you've always dreamt to fight.
The party is the following:
- Tiefling Rogue 7/Invisible Blade 5 ( kukris, twf, telling blow, sneak atks )
- Human Druid 13 with Dire Bear ( read spell compendium cover to cover )
- Human Fallen Paladin 1/Blackguard 10/Warrior 2 with Adult Bronze Dragon Zombie as mount ( Non-optimized charger )
- Human Warlock 13 ( He doesn't know the class very well )
I can assure that this is not an optimized party and the players are also not very experienced at high levels, so sometimes they tend to struggle.
What monster should I choose?