The more Vitality one loses, the slower their Posture will recover. If an enemy's Posture recovers as soon as it gets lowered, try reducing their Vitality first. When one loses all posture, they will be susceptible to a Deathblow.
Deflection is one of the main sources of posture depletion. If Sekiro perfectly parries an incoming attack, the enemy loses posture; conversely, if the parry was not perfect, Sekiro will. A successful deflection can be noted by hearing a loud and sharp noise when his blade meets the attack.
Counter-slash is performed by attacking right after successfully Deflecting an enemy attack. By using a combination of Deflections and attacks to deal posture damage, one can greatly reduce enemy Posture in a short time.
The Mikiri Counter is an unlockable Shinobi Combat Style Skill that allows a shinobi to perceive incoming thrust attacks and counter them by stepping on the enemy's blade. It is a powerful technique that deals more Posture damage than a regular Deflect.
Sweep attacks can be neither guarded nor deflected. however, Sekiro can jump to avoid them. Jump-kicking an enemy during their sweep attack will deal a large amount of Posture damage, often leaving them vulnerable to a Deathblow.
Enemy attacks can be evaded with a well-timed Step Dodge. It is effective against attacks that can't be parried. For example, when grabbed at by an enemy, it is better to avoid the attack than attempt to guard or deflect it.
Vault Over is a Shinobi Martial Art that allows one to leap over and behind a Posture-broken enemy. This Shinobi Martial Arts technique allows the use of Backstab Deathblows in the middle of battle, without using stealth.
Prosthetic Tools and Combat arts cost Spirit Emblems to be used. Spirit Emblems can be obtained by defeating enemies, finding them in the world, or purchasing them at Sculptor's Idols. If one does not have enough Spirit Emblems to pay the cost, a weaker version of the technique can still be performed.
There are sword techniques that can be unleashed after using Prosthetic Tools. These allow for a fighting style that further leverages the qualities of the Prosthetic Tools. Follow-up Attacks can be learned as "Prosthetic Arts" Skills.
Sekiro will lose skill experience points and Sen when he dies, but there is a way to avoid this on rare occasions by divine protection known as Unseen Aid. The rate at which Unseen Aid occurs can be found in the Pause Menu.
Resurrection cannot be performed repeatedly over a short period of time, but obtaining Resurrective Power allows it to be used once again. One cannot Resurrect without sufficient Resurrective Power. Killing enemies and performing a Deathblow will gradually restore Resurrective Power, however, Wolf's first node of Resurrective Power can only be restored by resting at a Sculptor's Idol.