Origins Main Set OGN-018/298 uncommon Official FAQ
Noxus Saboteur
Card Text & Abilities
Your opponents' [Hidden] cards can't be revealed here.
Official Rules FAQ & Clarifications
1 Official FAQ Q:
Which cards count for Teemo? Does Ember Monk count? What about Noxus Saboteur?
A:
Teemo counts cards that have the Hidden keyword, but not cards that mention Hidden but don’t actually have it. Ember Monk and Noxus Saboteur do not have the Hidden keyword.
Source: Official FAQ: Origins FAQ →