Reaver's Row

509.4.b.1. A player plays Traveling Merchant to Reaver's Row. They immediately change their mind and choose to play it to their base instead, or choose not to play it at all.

601.2.d.2.a. At Nexus Nights, if a player is playing a deck matching the exact contents of the preconstructed Jinx Champion Deck, they are allowed to use the banned cards in the deck, such as Fight or Flight, Scrapheap and Reaver's Row. If the player makes any changes or adds a sideboard, they can no longer include the banned cards.