Updated for patch 9.16B
Draven starts spinning his axe, causing his next basic attack to gain 50 / 100 / 150% bonus on-hit physical damage and 100% attack speed for 5.75 seconds, stacking up to two times. The spinning axe ricochets off the target high up into the air, landing 2 seconds later at Draven's current position. If Draven catches an axe, Spinning Axe is reapplied for no additional cost on his next basic attack. Draven can hold up to two Spinning Axes in his hands at once.