Whenever Sentinel of the Nameless City enters the battlefield or attacks, create a Map token. (It's an artifact with "1, T, Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.")
"Halt, traveler. Whatever you seek, you will not find it here."
![Sentinel of the Nameless City [The Lost Caverns of Ixalan Prerelease Cards]](http://tothetablebgc.myshopify.com/cdn/shop/files/53b28c8f-028b-4f83-8bad-5d6e8c090443_54a7c756-466a-4bfc-b090-deadb607a614.png?v=1776377450&width=1445)
