Ethereal Movement. As an action, you can pass into the Ethereal Realm and remain their until the end of your next turn. While you are in the Ethereal Realm, you remain visible in the Material Realm. You cannot be affected by anything in the Material Realm, nor can you affect anything in it until you return to it. You must finish a short or long rest before using this trait again.
Ethereal Wings. At 5th level, your wing are finally materialized enough for you to fly. You gain a flying speed of 30 feet.
Darkvision. You can see in dim light within 60 feet of you as if it were bright light , and in darkness as if it were dim light . You can't discern color in darkness , only shades of gray.
Piercing Gaze. You are proficient in the Insight and Perception skills. Burrower Burrower walkers are adept at keeping out of sight. When seen and in conversation, however, they are surprisingly articulate and knowledgeable despite their rather rugged appearance. Veins of blue and purple seem to form a hirsute appearance on them.
Bargainer. You have advantage in Charisma ( Persuasion ) checks related to haggling.
Dodgy. You are proficient in the Stealth skill. Strider Strider walkers are almost mechanical. They speak and walk like clockwork, without missing a beat, and wholly undeterred by others.
Realm Guard. You have advantage in saving throws and checks against effects that would move you against your will.
Shield Block. While wielding a shield, you have advantage on Strength saving throws.