Lethe

Weapon: Brazen Cat Fang (+Eff)

Assist: Positional Assist / Ardent Sacrifice

Special: Galeforce 

Passive A: Atk/Spd Boosting A Slot / Brazen Atk/Spd (3 or 4) / Fury 4

Passive B: S/D Near Trace / Desperation / Sweep Skills

Passive C: Rouse Atk/Spd 4 / Savage Blow 

Sacred Seal: Atk/Spd Solo / Quickened Pulse / Brazen Atk/Spd / Fury

• Brazen Cat Fang effectively grants Lethe +16 Atk, +13 Spd, +8 Def/Res, neutralization of enemy effects that prevent Lethe’s follow-up, +1 Special charge per attack to Lethe and -1 Special charge per attack to the enemy, and follow-up prevention. Given her high reach via 3 movement and strong offensive presence, Lethe benefits greatly from the additional action granted by Galeforce.
  • Assuming no Guard effect is active, Lethe can activate Galeforce after her first initiation if she lands two attacks and the enemy counterattacks. With Quickened Pulse, she doesn’t need an enemy counterattack, making it a valuable Sacred Seal choice (particularly with Desperation in her B slot, as Lethe will likely 2HKO the enemy before they can counterattack).
• Atk/Spd Boosting A slots such as Atk/Spd Catch 4 and Atk/Spd Clash work to maximize Lethe’s offensive capabilities, making them strong choices.
• Inflicting Spd/Def debuffs to the enemy during combat and granting Lethe【Canto (Rem. +1)】to move after combat, S/D Near Trace is an excellent B slot for her. Alternatively, Windsweep prevents physical enemies’ counterattacks, ensuring her safety.
• Rouse Atk/Spd 4 grants Lethe +6 Atk/Spd and【Null Panic】at the start of the turn if she is not adjacent to an ally, which improves her damage and synergizes well with one of her transformation requirements of being adjacent to no allies. Savage Blow also works well, making it easier for both Lethe and her allies to score subsequent KOs via dealing 7 damage to enemies within two spaces of the target after initiation.
• Atk/Spd Solo is Lethe’s strongest and most consistent Sacred Seal, simply granting +6 Atk/Spd during combat if she is not adjacent to an ally. Generally, this condition is easy to achieve given her 3 movement, as it often allows her to choose from multiple spaces to initiate combat.
• For Aether Raids Offense purposes:
  • Lethe is a strong Wings of Mercy beacon, a unit that drops to ≤ 50% HP so that allies with Wings of Mercy can warp adjacent to her. By stacking Fury 4 and Fury in her A slot and Sacred Seal respectively, she can drop to this HP range in two combats as long as her max HP is ≤ 56. Windsweep is especially valuable if using double Fury, as Lethe can more safely and consistently decrease her HP.
  • Alternatively, she can team with Brave Lysithea or Winter Bernadetta and use Ardent Sacrifice to decrease her HP in intervals of 10 until her HP is ≤ 50%. Brazen Atk/Spd becomes Lethe’s premier A and S slots if arbitrarily decreasing her HP in this way, as it grants +9/10 Atk/Spd and +7 Atk/Spd during combat respectively if Lethe’s HP is ≤ 80%.

Weapon: Brazen Cat Fang (+Eff) 

Assist: Positional Assist 

Special: Moonbow / Luna 

Passive A: Atk/Spd Boosting A Slot 

Passive B: Sweep Skills / S/D Near Trace / Desperation / Lull Spd/Def

Passive C: Rouse Atk/Spd 4 / Atk/Spd Menace 

Sacred Seal: Atk/Spd Solo / Blade Session 

• Given her solid offensive statline and plethora of offense-oriented effects in Brazen Cat Fang, Lethe is an excellent Player Phase unit. This set simply focuses on maximizing her damage, with her B slot being flexible enough to have safety options if preferred.
  • Granting +16 Atk, +13 Spd, +8 Def/Res, +10 Special damage, neutralization of effects that prevent Lethe’s follow-up, +1 Special charge for Lethe and -1 Special charge on the enemy per attack, and follow-up prevention, Lethe packs a punch in addition to being relatively safe. In particular, the offensive half of Null Follow-Up allows her to use B slots such as Windsweep, Watersweep, and Desperation; the former two prevent counterattacks against physical or melee enemies respectively, and Desperation allows Lethe to perform her follow-up before the enemy can counterattack if her HP is ≤ 75%.
• Assuming no Guard effect is active, Lethe can activate 2-cooldown Specials on her follow-up attack even if the enemy does not counterattack, which is valuable if Lethe is using any of the aforementioned B slots. If she is instead using a B slot such as S/D Near Trace (-3 Spd/Def on enemy during combat and ability to move remaining movement + 1 space after first action of Player Phase) or Lull Spd/Def (-3 Spd/Def and neutralization of enemy’s visible Spd/Def buffs during combat), she can use 3-cooldown Specials instead to dish out even more damage.
• Atk/Spd Boosting A slots maximize Lethe’s damage, making them her strongest A slots. Special mention goes to Atk/Spd Clash and Atk/Spd Catch 4, likely the strongest Atk/Spd Boosting A slots for Cavalry units due to their high ceilings of +10 (realistically +9) for the former and +9 for the latter.
• Rouse Atk/Spd 4 grants Lethe +6 Atk/Spd and【Null Panic】at the start of the turn if she is not adjacent to an ally, which improves her damage and synergizes well with one of her transformation requirements of being adjacent to no allies. Alternatively, Atk/Spd Menace also grants Lethe Atk/Spd +6 at the start of the turn, but instead inflicts -6 Atk/Spd on the closest enemies within four spaces; however, note that neither of these effects activate if no enemies are within four spaces.
• The typical go-to Sacred Seals for offensive units apply to Lethe as well, with Atk/Spd Solo granting +6 Atk/Spd if Lethe is not adjacent to an ally and Blade Session granting +3, +6, or +9 Atk/Spd if zero, one, or at least two ally/allies have already acted.