The Cocoon is a special powerskill exclusive to the Fatal Falls DLC. When used, it parries attacks nearby in a similar fashion to a shield.
Details
Special Effects:
On use, a bubble is formed around the player that can parry any attack from any direction.
On a successful parry, the cooldown is instantly reset, even with projectiles and bombs.
A successful parry can trigger Mutations that have an effect when successfully parrying.
As it parries in all directions, Cocoon can also affect certain attacks not affected by shields such as the upwards and downwards stab from Lancers, the shockwave from The Hand of the King, fire strikes from The Concierge and Sweepers, or even deflect incoming projectiles from vertical angles.
The Cocoon is found behind one of the three special rune doors in the Undying Shores. To absorb the blueprint, the player must open the correct door. Each door has two glowing runes above them. The combinations of runes to open the right door are found throughout the biome, on small violet tapestries. If the player fails to open the right door, the two remaining doors will stay locked for the rest of the run.