Is my plan to evil?
So my players are nearing the end of chapter 5 and will meet Auril for the first time next session. Super excited about that but not what my post is about.
One of my players is a Goliath artificer and has Demelok from the Wyrmdoom Crag as a mentor (I changed her to be a high-level Artificer) and since the Reghed nomads haven’t been a big part of the campaign I plan to exchange the Elk nomads with goliaths on Griffons as they ended the feud before going to Solatice and Grimskalle. After the encounter with the tiger tribe Auril will show up with her army of undead and snow monsters and Demelok will urge the party to flee and join them to the glacier. There she will remain and cast hallow to buy the party more time. This will work but in the end she will be killed by other antagonists.
Here’s the part that might be to evil: Auril will come after the party and would not let the opportunity pass to raise another Coldlight Walker (that might even be stronger but no specific idea or stat block) and have her attack the party in Ythryn. She was kind of the only Goliath to support my Goliath PC and taught him everything he knows so it would be heartbreaking to see her corpse misused by Auril but it would fit very well and maybe also enrage the PC to fight Auril.
What do you think? Is this too harsh or evil?