These passives were designed for specific classes, though they are useable for other mods.

Death Knight

Death Mantle

CL_Target_GrimEnd_Zombie

Your Necrotic aura becomes thick enough to damage foes who strike you.

Unholy Weapon

CL_UnholyWpn

Add Necrotic damage equal to your Wisdom Modifier to your melee attacks

Bone Cage

CL_BoneCage

Gain resistance to physical damage when you have Temp HP

Marching Dead

CL_MarchDead

Immunity to Difficult Terrain

Blood Barrier

CL_BloodBarrier

Gain +1 bonus to ac when you have Temp HP