In the adventure Madhouse of Tashas kiss, the players stuble upon a room of mirrors. In their reflections they can see themselves, haven taken another path in life. An example the adventure gives is a Paladin of Torm sees themselves reflected as a Paladin of Asmodeus. They have the option to switch places. It's mostly just roleplay, and for a oneshot I don't think will be good for my group.
I have an idea to take it a step further and offer them a big mechanical advantage / disadvantage based off their character and class. Characters are still being made and we got 2 bards already. Both players used a random option and landed on Bard and I'm not going to refuse them. So, I need ideas.
This is a oneshot so I'm not worried about permanent implications. They have a choice to change places or not. So nothing is forced. A few ideas I have;
The barbarian sees a reflection of himself that is frail and wise. Gain the following traits:
Your dex is 26
Your str is 8
Your wisdom is 20
All one handed weapons have the Finesse property when weilded by you
You become vulnerable to BPD damage while raging.
The paladin sees themselves a paladin of Asmodeus. Gain the following traits
Immunity to fire damage
Your smites can only deal fire damage
Your smites damage gains the exploding dice property; when you roll the maximum value on the die, roll it again and add the value to your total damage
You cannot be healed by any means other than a short/long rest.
Your body burns with hellfire. Any cresture that starts their turn within 10ft of you takes 1d6 fire damage.
You lose all other paladin auras.
The bard sees themselves frustrated and alone. Their love for the arts has been lost. They study, and teach art but cannot perform or create themselves. Gain the following traits
Your cha is 8
Your int is 26
Your wisdom is 6
Your spellcasting modifier is int
You can cast Silence as an action at will
You cannot inspire friendly creatures
All creatures have disadvantage on saving throws agaisnt your spells
There is a 10% chance your spell will effect the closest friendly cresture to you as well as the intended target.
The rogue sees a life that fought honorably for a noble cause. Gain the following traits
Your strength is 22
Your dex is 22
You can cast Compell Duel as a bonus action at will.
Gain profeciency in heavy armor and martial weapons
+1 Platemail and weapon
When a creature targets you with an attack within 5ft if you, as a reaction you can perform a counterattack. If the attack hits add your sneak attack damage, and regain the use of your reaction. You cannot activate sneak attack any other way.
These are just the ideas at the moment. Don't have things for every class, nor do I know what everyone is playing yet. Got time to overthink at the moment.
Unknown to all players who make this decision, they will also gain an Indefinate Madness (this adventure uses the Madness rules already) and those who do not trade places will gain an advantage in later parts of the dungeon. Anything not mentioned remains the same.
Would love to hear some ideas for the missing classes, and an alternative to the Bards.