Harbinger of Chaos

You have been noticed by the God of Chaos which is never defined by a single name.

Roll 1d12 whenever you cast a spell and perform the following:

1. The flows of chaos swirl around you; gravity ceases to work for you for the next round
2. The flows of chaos swirl around you; the nearest sentient thing to you catches on fairie fire for the next round
3. The flows of chaos swirl around you; your next action gains advantage
4. The flows of chaos swirl around you; your next action gains disadvantage
5. The flows of chaos swirl around you; you turn invisible for the next round
6. The flows of chaos swirl around you; time slows for you this round gain another action
7. The flows of chaos swirl around you; time freezes for you leaving you paralyzed for the next round - your spell casts before you are paralyzed
8. The flows of chaos swirl around you; the temperature in your immediate area raises 30 degrees
9. The flows of chaos swirl around you; the temperature in your immediate area lowers 30 degrees
10. The flows of chaos swirl around you; you evoke an ear piercing scream - seemingly for no reason
11. The flows of chaos swirl around you; the closest sentient creature is frightened from you for the next round
12. The flows of chaos swirl around you; gravity doubles for all sentient creatures but you in a 10ft radius - Affected creatures must make a DC15 STR check or fall prone