Ka Nefer, Tomb Raider

When Ka Nefer, Tomb Raider enters the battlefield, venture into the dungeon. (Enter
the first room or advance to the next room.)
Whenever Ka Nefer, Tomb Raider deals combat damage to a player, you may create a Treasure token if you've completed a dungeon. (It's an artifact with "{t}, Sacrifice this artifact: Add one mana of any color.")