Zero Hour

Zero Hour
This skill activates when Wolf and Saint completes, either by duration or manual activation. Saint explodes, and generates a healing area underneath you. This area will heal you and your friends at 8% of your max health per second. This effect only lasts 12 seconds.

Strategy
This ability works really well when Wilhelm or his allies are under heavy fire, or continuous fire, as the constant health regeneration can beat out the damage. This works if you're going for a tank-like build and need the health regeneration.

This ability also gives a helping hand when helping up a fallen ally, as it helps prevent you going down while reviving someone. This also will regenerate the health of the ally you revived.