Question

Is Shedinja immune to Curse?

Comments

Moves with no specific type.

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I've heard of these moves...just don't know 'em

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There is just curse but wether that will effect shedinja i dont know you should probably edit that to the question because thats a decent question.

Answer 1

No. Typeless damage is induced by weather damage(Sandstorm and Hail), status alienments that deal damage, entry hazards, Struggle, hurting itself in confusion, Beat Up, and Future Sight (source here). These moves can be used to deal damage to Shedinja causing it to faint.

Answer 2

Curse is a status move. Wonder Guard does not prevent Status moves.