Wraiths

Create Specter: creatures defeated by Wraiths are Destroyed; put a 2/2 Specter token creature with Flying on the battlefield under your control.
Flying
Immune: Necrotic, Poison, Charm, Prone, Restrain
Life Drain: Place a -2 Toughness counter on a creature that takes damage from Wraiths after the battle has resolved.
Resist: Acid, Cold, Fire, Lighting, Thunder; non-Magical, non-Silvered weapons.