Cartographer's Companion
Artifact Creature — Gnome
Ever since the Fomori's attempt long ago to extinguish Chimil's light, the Oltec have taken extensive measures to never get lost in the Core.
Rulings (7)
In some unusual cases, noncreature permanents may explore. For example, if the creature card returned by Defossilize is somehow not a creature once it's on the battlefield, it can still explore. You'll take all the same actions, and you may end up putting a +1/+1 counter on the permanent. (Note that some effects target a creature, and those effects would still require a legal target to have it explore.)
Map tokens are a kind of predefined token. Each one is a colorless artifact with the artifact subtype Map and the ability " 1 generic mana , tap , Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery."
If no card is revealed, most likely because that player's library is empty, the exploring creature receives a +1/+1 counter.
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