Batgirl 1x01
The Flash 5x09 Elseworlds
Arrow 7x09 Elseworlds
Supergirl 4x09 Elseworlds
The Flash 100th Episode
Destiny is rewritten and Oliver becomes Barry Allen and he is now the fastest man alive and Barry Allen becomes Oliver and he is now the vigilante of Star city also called The Green Arrow
ELSEWORLDS | BATWOMAN Series TEASER Trailer - The Flash, Arrow, Supergirl Crossover Batwoman Event