Just curious, but is it possible to give a bow unit all the breaker skills in the game? I'm asking because that's what I plan on doing with my Brave Bow Takumi so he can decimate pretty much any unit. (except for extremely high defense units or some well built raven tome users)
No, You only have one B-Slot. Hell, you arguably shouldn't put ONE breaker skill on him. Cancel Affinity should be used or Desperation for Quadyumi if you can push his speed up.
But, breaker skills are best on TA or Gem-Weapon units, either for killing the color that they counter or for dueling against their own color. And no, Bowbreaker doesn't help as much as you think.
Yes, you can inherit every breaker skill to a colourless unit since they do not suffer from a natural colour disadvantage. My Felicia is proof of this.
Speaking from experience though, you'll probably just end up using one B-Skill all the time so you may as well just give the one that you find most useful. Unless you're like me and want to give your waifu/husbando every skill you can :P
Pokemon GO
Fire Emblem Heroes
Fate Grand Order
Dragonball Legends
Dragalia Lost
IV Calc
Heroes