Vertedeath

Hi since ghost and psychic types can learn every moves, was wondering if its a bug if vertedeath can't learn psychic skills.

Basically there are 2 groups for the types. You have the Elemental (Water, Fire, Grass, Electric, Rock, Ice) and the Trio (for lack of a better name) (Psychic, Ghost and Normal).

Any monster whose type is from the Elemental group can learn any moves from the Trio types and their own type, i.e. a Fire-type monster can learn Fire-type moves AND Ghost, Psychic and Normal-type moves.

The Trio group is like this:
A Normal type can learn ANY skill.
A Ghost type can learn everything BUT Psychic skills.
A Psychic type can learn everything BUT Ghost skills.

Note that the exception is the self-destructing moves: Self Sacrifice and Martyrdom, which can only be learned by Rock-types.
Good luck!