​Life and death balance on the edge of Genji's blade. However, the number of swings Genji can get with a newly discovered animation cancel is not quite as balanced. 

​​Reddit user K_Cujo​ recently discovered that Genji can get upwards of ten swings with his Dragonblade through a clever use of wall-climbing. 

​​When Dragonblade is active, climbing a wall resets the cooldown of Genji's attack, allowing him to immediately swing again. Even though he reset is very situational (an enemy has to be backed up against a wall), it does add utility to Genji's already flexible kit. 

It is very likely that the animation cancel is not intentional, and could be patched out at some point, similar to ​Genji's edge dash.