Sentinel of the Nameless City (The Lost Caverns of Ixalan Prerelease)

Casting Cost

Type Creature - Merfolk Warrior Scout

Description
Vigilance
Whenever Sentinel of the Nameless City enters the battlefield or attacks, create a Map token. (It's an artifact with ", , Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.")

Power/Toughness 3/4

Rarity Rare

Brand Magic: The Gathering