Lies of P has a late-game item unlike anything I've seen in a Soulslike, and it honestly feels like cheating

gamesradar.com:

Lies of P has some of the tightest parry timing I've come across in any action game, but it also gives you one of the most overpowered items I've ever seen in a Soulslike, let alone a true Souls game: an honest-to-god auto-parry. 

For the uninitiated, Lies of P uses a weapon durability system built around grindstones that you can use to sharpen your weapon and, with special stones, apply temporary buffs. The best grindstones can add elemental damage, crit chance, or status effects to your attacks, but the king of all stones is the Perfection Grindstone unlocked by filling out Pulcinella's shop using the Venigni boxes found around the game. 

I was genuinely shocked to read the description for the Perfection Grindstone: "Temporarily activates Perfect Guard when guarding." In other words, for a short time after using this stone, all you have to do is hold down the block button to auto-parry all incoming attacks. As long as you're facing the right way, you won't take any damage and every parry will chip away at the hidden stagger bar of whatever's attacking you. 

The catch is that this stone has an extremely short duration, but there are two ways around that. By obtaining specific upgrades on the main character's Quartz skill tree, you can unlock a second charge of your grindstone and extend the duration of both of those charges. My testing has been a little inexact, but this combo gives you around 25 - 30 total seconds of auto-parry power, and you can pop both stones back-to-back in a pinch. I should also mention that you can increase how much stagger damage a parry deals, which is an upgrade I'd highly recommend even without this stone. (More handy Lies of P tips here.) 

This stone is exactly as busted as it sounds in a