Sure, it might take a while before he'll be accually possible with the grails but just imagine.
It's a tank on hoves. The amouth of stat stacking this guy has..
This is the build I'd use on him. The seal might not scream wow, but it's essential for his bulk.
The only downside is that he can't use specials like Aether very well.
Another posibility is to stack speed on him with atk/spd solo and something like spd/def 2.
(The buff on him is +4 to simulate the wolf berg effect)
And just for fun
This is him at the maximum extreeeeeme potental.
TT bonus
Summoner support
+6 buffs
Blessing bonus from 3 differend legendary heroes.
A stat boosting seal just for show.
And on top of that, the bonus from his axe doesn't show on this one.
Of course, this will never see the light of day, but it's insane to think you can accually do this.
Pokemon GO
Fire Emblem Heroes
Fate Grand Order
Dragonball Legends
Dragalia Lost
IV Calc
Heroes