Kliff

• Preferred IV: +SPD / -RES
• Weapon: Sagittae
• Assist: Reposition / Flexible
• Special: Aether / Blue Flame / Bonfire 
• Passive A: Close Counter / Fortress Def/Res 
• Passive B: Chill Spd / Guard 
• Passive C: Res Smoke / Atk Smoke / Spd Smoke /  Flexible
• Sacred Seal: Close Def / Quick Riposte

Kliff’s personal tome, Sagittae, has proven to be one of the more unique personal weapons released thus far, potentially granting the young villager with an impressive +5 boost to all of his stats aside from his HP. However, it comes with one huge caveat: Kliff must have at least five fewer Attack points than his opponent in order to activate Sagittae’s effect. Although this renders the tome’s effect to be rather unreliable, it can still be quite potent and transform Kliff into a unit capable of tackling a wide variety of threats under the proper circumstances. 

For his Special, Aether is a strong choice that grants him concurrent sustain and damage output increase, on top of scoring well in Arena, allowing him to be self-sufficient as well as engage in extended combat. In exchange for losing out on Aether’s sustain in favor of more damage, Blue Flame can also be considered, though it will force Kliff to focus more on his matchups in the Enemy Phase in order to reliably meet its requirement of having an adjacent ally. On a budget,  Bonfire is a solid option and will add on 16 points of damage each time upon activation, if assuming that Sagittae’s effect is active. 

Close Counter is an excellent option to utilize as Kliff’s A slot skill as it adds on to his versatility and allows him to leverage his decent mixed bulk against melee and ranged foes alike in the Enemy Phase. With Sagittae’s effect and the Close Def seal, Kliff can reach an even 39/39 defensive spread while retaining his excellent Speed stat, enabling him to easily take on most forms of damage. On a budget, Kliff’s native Fortress Def/Res can be taken instead to dramatically increase his defensive stats, but this does come at the cost of losing coverage against melee opponents. 

Kliff’s native Chill Spd is a powerful skill that allows him to forego the need for Quick Riposte altogether as foes who have enough Speed to avoid Kliff’s follow-up attack naturally are likely to be the ones targeted by Chill Spd's debuff, comfortably guaranteeing his ability to double on either phase; it also has the added benefit of providing team support. Alternatively, one can take Guard to strengthen his tanking capabilities and prevent his opponent from activating their Special; taking Guard in Kliff’s B slot does, however, require him to take Quick Riposte as his seal in order to guarantee his follow-up attack in the Enemy Phase. 

Smoke skills pair well with this build’s playstyle, with the choice of which to take ultimately depending on personal preference. Res Smoke is a good option to increase his damage output whereas Atk Smoke can be taken to strengthen his survivability. If utilizing Guard + the Quick Riposte seal instead of Chill Spd, Spd Smoke can also be considered. Otherwise, Kliff’s C slot is flexible and can be filled with any skill that best supports his teammates. 

• Preferred IV: +SPD or +ATK / -RES
• Weapon: Blárblade+  
• Assist: Reposition / Ardent Sacrifice / Flexible
• Special: Glimmer / Moonbow
• Passive A: Atk/Spd Solo / Swift Sparrow / Life and Death / Fury 
• Passive B: Desperation 
• Passive C: Odd Atk Wave / Even Spd Wave / Fortify Res / Flexible
• Sacred Seal: Speed +3 / Attack +3 / Heavy Blade

This build aims to maximize Kliff’s damage output through the use of the powerful Blárblade tome, trading in his personal weapon, Sagittae, in exchange for a much higher damage ceiling. However, this does come at the cost of him being much more reliant on receiving team support in the form of field buffs as well as on his ability to consistently perform follow-up attacks in order to truly excel. Accordingly, a Speed boon is ideal for this build, but an Attack boon can be a serviceable option should no other be available. 

Similar to other Blade tome users, Kliff makes excellent use of Glimmer, boasting a relatively low Special cooldown on top of scaling exceedingly well with the additional damage granted by Blárblade’s effect. He can also take Moonbow as his chosen Special to help against opponents with exceptionally high Resistance stats. 

Atk/Spd Solo pairs well with this build's playstyle, greatly enhancing Kliff's offensive potential through its strong boost to both of his offenses so long as he has no adjacent allies. Should Atk/Spd Solo be unavailable, Swift Sparrow can be taken to grant him a potent, albeit weaker, +4/+4 Atk/Spd increase on initiation. Another suitable alternative, Fury offers Kliff a solid overall +3 stat-boost, simultaneously strengthening his offensive potential and bulk. Lastly, Life and Death can also be considered, providing Kliff with a slightly stronger boost to his offenses in comparison to the aforementioned skills, but comes at the cost of significantly lowering his defenses. This cut to his defenses can be especially debilitating when working with a -HP or -DEF bane, making it worth considering taking Ardent Sacrifice as his chosen Assist skill in order to immediately drop him into Desperation’s HP threshold without relying on his ability to take a hit. 

Desperation is Kliff’s ideal choice for a B slot skill and enables him to unleash powerful attacks upon his opponent in succession, provided that he is under its HP threshold. As for his C slot, Wave skills such as Odd Atk Wave and Even Spd Wave are good options to consider, as they allow him to be more self-sufficient in the way that he receives buffs as well as provide team support on odd or even-numbered turns. Otherwise, Kliff has no attachment to any particular C slot skill and can use any skill that best supports his teammates, such as his native Fortify Res. 

Lastly, the Speed +3 and Attack +3 seals are both good choices to grant either of his offenses a solid +3 bump. Thanks to Blárblade’s effect, Kliff can also utilize the Heavy Blade seal to great effect and make use of stronger Specials such as Draconic Aura, effectively circumventing its otherwise long Special cooldown.