What is the name of the "Flash" and "Arrow" spinoff featuring a team of characters that have appeared on both shows?

The name of the Flash and Arrow spinoff featuring a team of characters that have appeared on both shows is Legends of Tomorrow. This show follows a group of superheroes and villains as they travel through time to stop an immortal supervillain from destroying the world. The team consists of various characters from both The Flash and Arrow, including Atom, White Canary, Heat Wave, and Captain Cold, among others. Together, they form a unique and diverse team, working together to protect the timeline and restore balance.