Actually achievable new game mode.

[Fendi]

If a new difficulty is add it just make it classic or Rag+. Bring back 20 waves = sleipnir, all tomes have a 5% chance no wraith, 45% 1 wraith, 50% 3 wraiths. I dont know if devs have the old copies of maps still lying around.

I think winter? thought about it.