I've got a question about the Arcane Archer's Piercing Arrow ability (Xanathar's Guide to Everything).
From what I can read, the arrow effect of being able to pierce through objects without harming them seems almost identical to the 3.5e weapon enchantment "brilliant" property (the D&D version I'm coming off of). With this enchantment, your enchanted arrow could go through armor, walls, etc. without being stopped, however it dealt no damage to undead.
Is the Arcane Archer's arrow the same? Can it damage undead? Also, can it damage constructs, or do those count as objects for this kind of effect?