seconds. You do have to take care of sustaining your rage, though. As pointed out by ShadowRanger in the comments, this can be achieved by smashing a vial of Alchemist's Fire on yourself in a setup round. Whether this would be considered as doping in an official contest is a different question... Setting up some kind of relatively harmless trap (a small fire for example) on the way to step into is also an idea that could be worked with, as long as it does not turn the ground into difficult terrain.
