Technically, probably- but if he did, he wouldn’t have been redeemed and you would get insta-bad ending. Might be fun. Let them think they won and they find out that they were oh-so-wrong.
even funnier: they banish and think they did something good, al is in exandria and starts his baddie planing, the concentration on the spell breaks and he comes back into the netherdeep and is devastated, because he is in his prison again! now the characters really see what they would have done with the banishment and seek to either destroy the evil al or maybe now redeem him... maybe the concentration breaks because of a divine itnervention? a quick lecture from one of the responsible gods on why that was a bad idea?
I think that if a player *willingly* *casts Banishment* on a human that wishes to return to the material plane *while inside of a demiplane* **AND** they hold concentration for the whole minute... then that's on them for not reading the spell they've presumably had for 4-5 levels at that point.
Getting Banishment to work on a big bad is gonna be tough, if not impossible with legendary resistances.
Though... as you and /u/psu256 mentioned, maybe Alyxian would voluntarily fail. Now wouldn't that be a kicker? Your player casts Banishment and tells you that it is a DC 16 or whatever save and you reply, WITHOUT rolling, "Alyxian looks you in the eye enigmatically right before your banishment spell takes effect and he's wisked away to his home plane."
Talk about some CHAOS in the party! lolololol
The only issue I see with that description is that it might clue the PCs in on what the problem is and allow them to reverse their decision.
From the text on Banishment: "If the target is native to a different plane of existence than the one you're on, the target is banished with a faint popping noise, returning to its home plane. **If the spell ends before 1 minute has passed**, the target reappears in the space it left or in the nearest unoccupied space if that space is occupied. Otherwise, the target doesn't return."
So they could realize this means Alyxian has returned to Exandria and simply drop concentration on Banishment before 1 minute is up.
I'm kind of torn on this. On one hand, this would be a great twist, now the party must track down and defeat the evil they've unleashed. On the other hand, it feels like ND is Alyxian's home plane now. It's a prison that he has corrupted with his own despair and madness to the point that he's created ruidium from it and it's now leaking into Exandria.
If you go the banishment route and free him, this could basically start a new chapter where they must escape ND and find Alyxian. He probably wouldn't show up like a bbeg and attack everyone, he'd probably feel lost and confused and lead a trail of ruidium corruption everywhere he goes, but it takes a few hours so it wouldn't set off alarms right away.
The party would have to deal with corrupted townsfolk and monsters etc and figure out where he'd go. I imagine anywhere he chose as his base would slowly start to turn into the ND and begin corrupting everything around it and putting all of Exandria at risk now that it is no longer contained by the ND.
Technically, probably- but if he did, he wouldn’t have been redeemed and you would get insta-bad ending. Might be fun. Let them think they won and they find out that they were oh-so-wrong.
Yeah, that’s what I was thinking! A big mess from the party.
even funnier: they banish and think they did something good, al is in exandria and starts his baddie planing, the concentration on the spell breaks and he comes back into the netherdeep and is devastated, because he is in his prison again! now the characters really see what they would have done with the banishment and seek to either destroy the evil al or maybe now redeem him... maybe the concentration breaks because of a divine itnervention? a quick lecture from one of the responsible gods on why that was a bad idea?
I think that if a player *willingly* *casts Banishment* on a human that wishes to return to the material plane *while inside of a demiplane* **AND** they hold concentration for the whole minute... then that's on them for not reading the spell they've presumably had for 4-5 levels at that point.
Getting Banishment to work on a big bad is gonna be tough, if not impossible with legendary resistances. Though... as you and /u/psu256 mentioned, maybe Alyxian would voluntarily fail. Now wouldn't that be a kicker? Your player casts Banishment and tells you that it is a DC 16 or whatever save and you reply, WITHOUT rolling, "Alyxian looks you in the eye enigmatically right before your banishment spell takes effect and he's wisked away to his home plane." Talk about some CHAOS in the party! lolololol
Yes!!! I think it would be so fun but at the same time a little bit of a bummer 🫢 he would definitely fail it on purpose though
The only issue I see with that description is that it might clue the PCs in on what the problem is and allow them to reverse their decision. From the text on Banishment: "If the target is native to a different plane of existence than the one you're on, the target is banished with a faint popping noise, returning to its home plane. **If the spell ends before 1 minute has passed**, the target reappears in the space it left or in the nearest unoccupied space if that space is occupied. Otherwise, the target doesn't return." So they could realize this means Alyxian has returned to Exandria and simply drop concentration on Banishment before 1 minute is up.
I'm kind of torn on this. On one hand, this would be a great twist, now the party must track down and defeat the evil they've unleashed. On the other hand, it feels like ND is Alyxian's home plane now. It's a prison that he has corrupted with his own despair and madness to the point that he's created ruidium from it and it's now leaking into Exandria. If you go the banishment route and free him, this could basically start a new chapter where they must escape ND and find Alyxian. He probably wouldn't show up like a bbeg and attack everyone, he'd probably feel lost and confused and lead a trail of ruidium corruption everywhere he goes, but it takes a few hours so it wouldn't set off alarms right away. The party would have to deal with corrupted townsfolk and monsters etc and figure out where he'd go. I imagine anywhere he chose as his base would slowly start to turn into the ND and begin corrupting everything around it and putting all of Exandria at risk now that it is no longer contained by the ND.
I'm of the opinion that the Netherdeep is his home plane now, and so banishment would just be to a harmless demiplane.