Fight or Flight

359.3.f.2. Information referenced in an instruction in this way will be checked on execution of the instruction, unless specified otherwise by the effect. Examples: A player moves Yasuo, Remorseful to an occupied enemy battlefield and initiates combat there. In reaction to the Yasuo, Remorseful attack trigger, their opponent plays Fight or Flight from facedown targeting Yasuo, moving him back to base. When the attack trigger resolves, "here" is no longer the battlefield where combat is ongoing and the attack trigger mistargets. In reaction to a Yasuo, Remorseful attack trigger, an opponent plays Stupefy targeting Yasuo. When Yasuo's attack trigger resolves, it will deal damage equal to his current Might of 5.

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.