|Hinoka has her own eponymous spear that helps her stand out among her lance flier peers by becoming a great support unit, either for other fliers, or on a regular team that uses infantry units as well.
Weapon: Hinoka's Spear is Hinoka's weapon of choice. When given its special skill, it will allow any flier or infantry allies within two spaces of Hinoka to warp to any space adjacent to her, basically giving her a built in Guidance 3 of sorts. This improves the mobility of her allies greatly, and it's also why this build can also work on regular teams. It also grants Hinoka herself a +4 Atk and Spd boost during combat if she has a flier or infantry ally within two spaces of her. As long as she stays close to the right teammates, she'll always have a +4 Atk and Spd boost, which can be improved further with supports and buffs. This makes Hinoka not just a supporter, but quite a combatant as well.
Assist: Reposition is a good Assist in general to use. Its uses are versatile, as it can either help bring an ally closer to the fray, or bring an ally out of danger. Flier units can put it to great use thanks to their freedom of movement.
Special: Moonbow is chosen as Hinoka's Special for its fast charge and defense piercing effect. As long as Hinoka can double her opponents, she'll be able to activate this during combat and help secure the victory against her foe.
A Passive: Fury 3 is an easily accessible option for Hinoka's A skill, granting her a boost to all stats, improving her overall combat performance at the cost of 6 HP after each round of combat. For more elusive options, Swift Sparrow 2 would grant her +4 Atk and Spd when initiating combat, improving her player phase performance more. Atk/Spd Bond 3 is an option that requires a bit stricter positioning, as Hinoka will need to remain adjacent to her allies, but it has a greater yield of +5 Atk and Spd and it works on both phases.
B Passive: Hit and Run is an option for Hinoka's B skill, as it lets her retreat one space backwards after initiating combat. She could fly up to a foe, defeat them, and then retreat back to a nearby ally and retreat back to formation. However, this skill slot is pretty flexible. If Hinoka wants to purely support, then a Chill skill like Chill Def 3, Chill Spd 3, or even Chill Atk 3 would be excellent. Def/Res Link 3 could allow Hinoka to buff a flier ally for +6 to all stats if she uses Reposition, which would be especially fantastic on a mage flier with a -Blade tome. It'd also grant the defensive buff to Hinoka herself, which is helpful just in case she has to take a hit as well. For less elusive options, Swordbreaker 3 is a simple, but effective option for Hinoka to smite sword wielders.
C Passive: Hone Fliers is a great choice for Hinoka's C skill. She comes with it naturally, and it helps grant a fantastic offensive buff to her flier allies. If the player really feels like another skill is necessary, or should Hinoka be used on a regular team instead, then this skill slot is flexible, open to be whatever else the player needs.
Sacred Seal: Flier Formation 3 is an option for Hinoka's Seal to really help her stay in formation with her flier allies, and should be considered on an all flier team. While they'd be able to warp more easily over to her, this skill will also help her warp more easily over to them, which will improve Hinoka's mobility more. Speed +3 could be chosen instead if Hinoka wants to improve her combat performance instead.