Let's Watch: Revenant trailer

@TrancyGoose I think they're all shown in the vid:
Passive: climbing faster & fast moving when crouched
Tactical: Spear hand, probably powerful melee
Ultimate: Shadow mode - low health but with deadly melee attack and fast movement. On shadow death or when the ult expires, he goes back into his simulacrum form.
Finisher: spear hand going through the body of the enemy, raising him up.