Board Thread:Antaeus' Arena: Audience Chamber/@comment-1515612-20160527042231/@comment-25852705-20161213021452

For the shadow travel thing Nico used it in a short distance in Trials of Apollo but it was exhausting to him still. As for shadow travelling long distances, that would be a poor move in a fight against Leo as it would give Leo time to (literally) build up a defense against Nico.

Nico can still hide in the shadows though.

For the debate on skeleton involvement my take is that Nico will always be able to call on the skeletons in a fight if they are on solid ground but Leo would need Festus to be near to get the dragon's help. Therefore the skeletons should be considered as one of Nico's powers if they are not fighting in a specialized arena meant to disadvantage Nico.