Hidden is an attribute employed by the following cards:

You may only attack a hidden enemy unit if you control a revealer in the same location. The following cards have the revealer attribute:

The revealer card itself does not need to attack a hidden card to reveal it. For example, if a Rat player controls a Scout and a Skirmisher in the same location as an enemy Digger, the Skirmisher may attack the Digger regardless of what the Scout does on that turn.

In one on one and free-for-all matches, only the player who controls a revealer may attack hidden units. One player's revealer does not permit other players to attack hidden units there.

In team matches, one player's revealer allows all members of his team to attack hidden units there.

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