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IshmaelJeong's Office Rep
Basically always use the skill (or an E.G.O) that matches the color of her 'Suit in Hand' buff. If that's not possible, use her defense to randomize her suit. The remaining points are just an explanation of her mechanic.
Starts out the battle with 0 
Bright【光】 Potency and 3 Count as well as a random 'Suit in Hand' buff (
Hand - Pine Crane Suit, 
Hand - Susuki Grass Suit, 
Hand - Blue Sakura Suit).
Think of the Potency as the number of points she has and the Count as a timer for her to reach 5 points. Every turn, the Count goes down by 1, and if it's 0 when she uses a skill, her passive mechanic triggers at the end of the skill. When this happens, if she has less than 3 points, she just gets 2 
Attack Power Up then Bright【光】 resets to 0/3. If she has 3+ points, she uses her S3-2 as an unopposed attack.
Her S3-2 consumes all her Bright【光】 to deal more damage and gain an extra Coin per stack/point she had. If she had 5, she also triggers 
Tremor Burst twice on the last coin. After that, next turn her Hand randomizes its color and she resets to 0/3. If she didn't use up all her coins, she starts her next 'round' with points equal to the number of coins she didn't use instead of 0.
Each of the following will give her one point (only counts for her leftmost skill slot):
- Use a skill with an affinity that matches her current suit (
for Hand - Pine Crane Suit, 
for Hand - Susuki Grass Suit, 
for Hand - Blue Sakura Suit). This counts both her base skills and E.G.Os - Use her S3 or an E.G.O skill
- Match her current suit 2 turns in a row
Meeting multiple conditions at the same time will give her a point for each condition, and you can tell how many points she got in a turn with the card visual and sound effect that happens when she uses her skill.
In addition to generating points, her leftmost skill will also convert her Hand to the suit matching that skill's affinity next turn, and if she matched her current suit, she triggers a Tremor Burst and has a 25% chance to generate an extra E.G.O resource for the skill she used.
If there's no way for her to match her suit or generate points, she can use her defense skill to 
Discard skills, randomize her suit, and have a 50% chance to generate a point.
All her skills Discard skills that are different from the skill she used to help her match her suit easier on succeeding turns.
S3 triggers 
Tremor - Decay if her target isn't already in 
Amplitude Conversion.
S2 has a 5 SP heal on hit.
Her passive gives her an additional 5 SP heal on tails hit and a 10% damage bonus against enemies in low morale or panic states.
4 +4
62 (+2)Clash: 4-20Damage: 8-38.5Atk Weight:Discard that Skill
[On Use] Coin Power +1 for every 6 (
Tremor + 
Sinking) on target (max 2)
Sinking CountSinking CountTremor CountTremor Count
4 +463 (+3)Clash: 5-25Damage: 12-65.45Atk Weight:Discard that Skill
[On Use] Coin Power +1 for every 6 (Tremor + Sinking) on target (max 2)SinkingSinkingTremorTremor
5 +464 (+4)Clash: 6-30Damage: 24.9-127.12Atk Weight:Bright【光】 Potency on self
[On Use] If the other Skill in the same Skill Slot is a different Skill, Discard that Skill
[On Use] Coin Power +1 for every 6 (Tremor + Sinking), on target (max 3)Tremor CountSinking CountSinking CountTremorSinkingTremor CountAmplitude Conversion or 
Amplitude Entanglement states, this Coin deals +48% damageAmplitude Conversion state, trigger Amplitude Conversion into Tremor - Decay
4 +565 (+5)Clash: 6-13Damage: 37.5-186.67Atk Weight:Bright【光】 Potency, cancel the Skill and gain 2 Attack Power Up next turn
[On Use] At 3+ Bright【光】 Potency, gain the following effects based on Potency:
- Per 1 Potency: this Skill deals +10% damage
- At 4+ Potency: Base Power +1
- At 5 Potency: On Hit with the final Reuse Coin, trigger Tremor Burst 2 times; then, reduce target's Tremor Count by 1
[Skill End] Lose Bright【光】 on self
[Skill End] Next turn, convert the Suit in this unit's Hand to a random Suit that corresponds to one of this unit's Base Attack Skills (once per turn)
[Skill End] Gain Bright【光】 Potency next turn equal to the # of Coins that weren't usedBright【光】 Potency - 1) times (4 times max)Tremor CountSinking Count
Defense Level Down
5 +463 (+3)Clash: 6-19Damage: 10-35.93Atk Weight:Discard 2 Skills of the lowest rank in all of this unit's Skill Slots (once per turn)
[Combat Start] If this Skill was equipped on this unit's leftmost Skill Slot, convert the Suit in this unit's Hand to a random Suit that corresponds to one of this unit's Base Attack Skills next turn. (once per turn; excluding the Suit already in this unit's Hand)
[Combat Start] 50% chance to gain 1 Bright【光】 Potency (once per turn)
[On Use] Coin Power +1 for every 2 Bright【光】 Potency on self (max 2)Sinking CountTremorBright【光】, gain 0 Bright【光】 Potency and 3 Bright【光】 Count
Turn Start: if this unit does not have a Suit in Hand, gain a random Suit(Hand - Pine Crane Suit, Hand - Susuki Grass Suit, or Hand - Blue Sakura Suit) that corresponds to a Base Attack Skill on this unit's leftmost Skill Slot
Combat Start: when this unit uses a Base Attack Skill or an E.G.O Skill equipped on its leftmost Skill Slot, activate the following (once per turn):
- Next turn, convert the Hand on self to the one corresponding to the used Skill's Affinity
- If the Skill was either "Sakura-sen" or an E.G.O Skill, gain 1 Bright【光】 Potency
- If the Skill's Affinity matches the Affinity on the current Hand's description(thus "forming a Hand"), activate the following:
· Gain 1 Bright【光】 Potency
· If this unit formed a Hand last turn and this turn in succession, gain 1 Bright【光】 Potency
· On Hit with the said Skill: trigger Tremor Burst; then, reduce target's Tremor Count by 1
· 25% chance to gain 1 E.G.O Resource corresponding to the Skill's Affinity
- At the Skill's Skill End: at 5 Bright【光】 Potency, or at 0 Bright【光】 Count, use "Kōzan" x2 x2 x3 x3