Chaos ring

Create a ring of chaos and have the dm roll a d210

depending on what they get something from this table happens

1. the player loses all hp but one
2. The party is treated as if they long rested
3. you can’t cast spells for two days
4. you get a random conjure on your level 
5. your party levels up expect for you 
6. you create a 15ft ring of darkness that does 3d6 damage to anything that walks into it and medium creatures and smaller ones are stuck for two rounds
7. half your Currency is put in a locked chest with a dc15 lock 20ft away from you
8. you learn an extra spell for 2hours
9. your enemy’s health is full and doubled 
10. you can cast any spell without using a spellslot for 1hour