Flying - Unit can fly, which negates all terrain penalties. A Flying unit cannot be attacked by non-flying units in melee, although they do counterattack.
Summon - Unit was summoned and belongs to another world.
Construct - Unit is immune to Mind and Death effects, poison, critical hits, Gaze attacks and Positive and Negative energy. They cannot be raised from the dead.
Ethereal - Unit's attacks ignore armor (are more likely to hit).
Mundane Resistance - Unit receives 2 less damage from all Mundane attacks.
This attack will reach flying units.