Revek

Revek is the ghost protector of Spirits' Glade. Upon entering the Glade, he can be found near the entrance of the area. He warns The Knight that they will face consequences if they harm any of the Glade's spirit inhabitants.

Behaviour and Tactics
Once the Dream Nail has been used on at least one ghost, Revek spawns and charges at the Knight, dealing 2 masks of damage. Exiting the Glade resets Revek and makes him stand on his tomb again like all other spirits until the Dream Nail is used on another ghost. He cannot be damaged or defeated until all ghosts have been consumed and the area is exited and reentered, after which he can be Dreamnailed for 1 Essence.

While Revek cannot be damaged, he can be repelled temporarily by:
 * Parrying.
 * Using the Dream Nail on him.
 * Hitting him with the trail of the Crystal Heart's Super Dash.
 * Dashing through him with Sharp Shadow equipped.
 * Using any Spell.

Doing so will despawn him only for a short while; he will keep appearing and attacking as long as the player remains in the area.

Trivia

 * Revek was first revealed in a Kickstarter update detailing various Backer Bugs:
 * Meet Revek the Guardian. In life he defended the glade and continues his vigil, even as a ghost.