Wall of Bern

So i had a stupid build idea that i figured id share

Zephiel
Eggysacks +refine (threaten def + distant defense 3)
Pivot
Bonfire
Fortress def/res 3
Bold fighter
Armor march
Close defense

On an armor team, he gets +6 def/res from fortify, +6 def/res from his a skill, +6 def/res if ranged or melee. Hone/goad cancels out the small penalty from fortress 3, armor march means consistent moving, bonfire to take advantage of the monstrous def stat, bold fighter to take advantage of threaten def in his prf weapon, pivot for movement.

Thoughts? I really want to build this just because i think its funny, but with all these crazy armor units coming out it probably wont be too long until theres someone much better suited for this. 55 hp, 56 def, and 42 res is just monstrous though.