Has no one really posted the possibility of the trio/quartet being based on the Valkyrie of Norse mythology?
There are several mentioned in different poems and such, but really only three or four are necessary. GameFreak could design them all to look like half-horse/half-spirit like creatures (Valkyrie are known to ride pegasi). Alternatively, they can be represented by a raven, a swan and a horse, the three animals connected to the Valkyrie.
As far as typing, well that all deals with which Valkyrie are represented. Skuld (Debt, or Future) could be Flying/Psychic or Psychic/Fighting, while others could be a mixture of part-Flying or part-Fighting types.
There are several mentioned in different poems and such, but really only three or four are necessary. GameFreak could design them all to look like half-horse/half-spirit like creatures (Valkyrie are known to ride pegasi). Alternatively, they can be represented by a raven, a swan and a horse, the three animals connected to the Valkyrie.
As far as typing, well that all deals with which Valkyrie are represented. Skuld (Debt, or Future) could be Flying/Psychic or Psychic/Fighting, while others could be a mixture of part-Flying or part-Fighting types.