Thread:Mnebulae/@comment-73.165.237.78-20170522233653/@comment-27862737-20170523032735

You have to clear the first few stages to get each of the corresponding knights. For instance, once you get to Relic Ruins and complete the first stage, you get the Earth Knight. The same applies with the Water Knight - you have to complete the first stage of Thieves Cove, then Skeleton's Tomb, etc. If you don't cleared the stages after Relic Ruins, you don't get the additional knights.

HTH.

-M