The numbers shown are the minimum amount of time required to qualify for one of the classes. If a dragon can spend less than two days in space, they're considered flightless.

  • F-Tier: A month or less
  • E-Tier: 6 months or fewer
  • D-Tier: 2 years or fewer
  • C-Tier: 10 years or fewer
  • B-Tier: 50 years or fewer
  • A-Tier: 200 years or fewer
  • S-Tier: More than 200 years