Valkyr Falling Off Map Can Cause Hysteria Problems.

[virgatetomb]

If you cast hysteria while falling of the map when you respawn Hysteria will not be active and your melee and hysteria won't work anytime afterwords. 

[Issun135]

This is partly because falling off the map cancels your active ability, as people (including me) would walk off the map and use absorb and end up able to walk around while absorbing. But they should fix that happening to hysteria and iron skin.