Quote Originally Posted by Keravath View Post
Just a couple of comments.

1) Dispel magic doesn't work against a construct unless the DM decides it does.

"Choose one creature, object, or magical effect within range. Any spell of 3rd level or lower on the target ends."

RAW, dispel magic in 5e just dispels spells or similar magical effects. Dispel magic doesn't work to stop constructs (including warforged), golems, undead, or the functioning of magic items as it did in previous editions.
In this case the armor has Antimagic Susceptibility which calls out Dispel Magic specifically as a vulnerability.