Thorny

Thornies are an enemy encountered in the Ossuary. One appears as an elite key guardian in High Peak Castle, occupying the green room.

Behavior
The Thornies will attack by rolling in a ball towards the player, dealing contact damage and knock-back. Dodge roll through their roll attack and attack them when they get out of their ball form. If you attack these enemies with a melee weapon while facing their spiked back, damage will be inflicted on you.

Tactics

 * Their rolling attack can be easily parried.
 * Using the "Mario Jump" affix will cause you take damage.
 * Not all melee attacks will trigger the Thorny's spike damage. The two melee whips, Valmont's Whip and Wrenching Whip, will ignore their spiked back and deal damage as usual.
 * The Wrenching Whip will however make the player take damage on its third hit combo, as the player will perform a kick instead of using the whip.
 * Because of their spiked back, the critical hit of the Assassin's Dagger cannot be dealt without taking any damage.