Flash

Flash is a blink summoner spell that activates instantly upon being cast, teleporting the player's champion a short distance in the direction of their cursor.

Strategy
Flash can easily be used to escape from or catch up with a foe. It can be used to dodge or land abilities. It can also be used to move over walls, either for a quick escape or in response to an opponent's dash.

Trivia

 * For a time, the inclusion of flash in the game was hotly debated and Riot considered removing Flash from the game entirely, with parts of the community for and against removal. As a result, it has suffered several nerfs.

Patch History
Flash Blitz Saut Éclair Błysk Flash 闪现