Bartre

Bartre's high base HP stat allows him to run Infantry pulse very effectively, supporting his team by accelerating their special charge cooldown. He'll also cripple the foe with the highest defense on the enemy team with Chill Def 3.

A build designed to take advantage of Bartre's high defence and allow him to become a physical tank.

IVs: +Atk/+Def, -Res. Attack boon is still preferred, as Bartre could always use more power (and his defence will already be high enough as it is). If you want more tankiness, more Defence doesn't hurt. His Resistence is awful no matter what, so a bane won't affect him much, as he will still die to just about any mage regardless.

Weapon: His Hammer is kept and forged for defence, increasing his bulk and giving him effective damage against armored units. The Slaying Axe with the same forge can be chosen if going for a higher cooldown special.

Assist: Smite is kept here, but the skill used is really up to player choice, as it doesn't matter all that much.

Special: Ignis is the obvious choice here to take advantage of his massive defence, although Bonfire would also work here; with this build, Bonfire adds 24 damage, while Ignis adds nearly 40.

A Skill: Any defence-boosting skill will work here; Atk/Def Bond is chosen because Bartre functions mostly on the enemy phase, so positioning for it is easier. Steady Stance/Breath and Close Defence are the best choices, but may be harder to come by. On a budget, Earth Boost is a good choice, as Bartre's ridiculous HP stat will cause it to activate on most units.

B Skill: Axebreaker is the skill of choice, as it allows Bartre to KO just about any axe user in one engagement. Quick Riposte can also work, although the threshold is easier to fall below.

C Skill: Though most would opt for Threaten Def, this build opts for Threaten Atk. The purpose of this is to make Bartre an even better tank on both phases, as -5 Atk on a foe is equivalent to +5 Def for Bartre on both phases, meaning he can attack on the player phase without missing much of the defence that Close Defence offers.

Seal: Close Defence is the obvious choice here; an extra 6 Def on enemy phase against the melee units Bartre will be fighting is extremely helpful, both for taking less damage and for powering up Ignis/Bonfire.

Blessing: The fire blessing is the most obvious choice, providing 4 more Def and 3 more HP, though the earth blessing could also help, providing Bartre with more firepower. If fully investing into Bartre (like I have), the water blessing could actually be more effective than you may think, though this requires some set-up with team composition.

+10 merged I did it

I also supported him with my summoner.

Honestly, I love him, I didn't expect much from him at first, but he is doing surprising well. He's very tanky, on par with some of the armored unit, and I noticed that even sword characters had trouble actually killing him!
Though I don't expect him surviving any magic attack, but with proper placement, this isn't too much of an issue.

Quality dad, 11/10, would recommend.

What happens when Fredrick chooses the General class (Tank build) with the new update that nerfs Calvary emblems comes Fredrick loosing his horse to be come a wall that is similar to Fredrick. Meet Bartre with this build you can survive physical units while tanking them with heavy Blade 3 seal. Infantry emblem recommended

Alright so this guy is basically green Lukas but you gotta watch his HP because fury tanks lose that fast. But yeah Tanky Bartre has some potential and he's definitely a unit who needs to be recognized more.