Is there a vendor inside Egg Heist?

Merchants appear on hard mode and lower difficulties, spawning at random points.

Inside the dungeon, you can encounter a black market merchant near the blue entrance that leads to the Sanctum. Other vendors appear beside the side entrance or right next to the alternate dungeon entrance.

When an item vendor spawns inside the labyrinth itself, look along paths leading toward an exit. On higher ranks and difficulties, fog of war conceals the labyrinth map until you explore the corridors yourself, so you have to check entrance perimeters on foot.

Vendor stock and dungeon keys

Keys unlock locked doors and areas that hide rare loot boxes or eggs, including gates requiring silver keys on hard difficulty.

The exact point where you acquire dungeon keys is not settled. In some runs you buy them inside from the trader NPC near the portal or side entrance, while in others you must purchase them before entering. Any keys acquired outside must sit in your inventory or backpack before your Egg Heist match starts, or you cannot use them.

Not settled: Whether dungeon keys are sold by the interior entrance trader or must be purchased before entering the match is not settled.