Hello again people.
Today I bring a guide on how to build Promotional Banner Characters
Showing the best Revelation Cards, Universal Card, Mainstats and Substats for them.
Let's Begin.

ATTENTION: this guide is made with all my knowledge from the KR/TW/CN version of the game.
Some Characters showed on the guide are from a later version of the game.
Feel free to come back to this guide when you need to build a character from an advanced version of the game.

Universal Card: Departure
Revelation Card: Interference

+2 Set Effect: Increase Curse damage by 10%.
+4 Set Effect: Increase Curse damage to foes with debuffs by 20%.

Mainstats:
Sun: HP
Moon: ATK MULT+
Star: CRIT RATE
Planet: ATTACK

Substats:
CR%> CD%> DMG Bonus%> ATK%

Universal Card: Growth
Revelation Card: Change

2-Set Effect: Increases Attack Damage by 10%.
4-Set Effect: After any party member uses electric skills, the user's own electric damage will be increased by 9% (Stacks up to 3 times).

Mainstats:
Sun: HP
Moon: ATK MULT+/ATK
Star: CRIT RATE (if A0)/Crit Dmg (if A1)
Planet:ATK

Universal Card: Focus
Revelation Card: Luxury

2-Set Effect: Defense is increased by 20%.
4-Set Effect: Shield Effectiveness is increased by 18%.

Mainstats:
Sun: HP
Moon: ATK MULT+/ DEF
Star: CRIT RATE
Planet: DEF

Substat:
SPD> Crit Rate> Crit DMG> DEF

Universal Card: Awareness
Revelation Card: Truth

2-Set Effect: Increases Nuclear Damage by 10%.
4-set Effect: If you use a skill to attack an enemy and the main target has an elemental debuff, it will cause damage equal to 30% of the original damage.

Mainstats:
Sun: HP
Moon: ATK MULT+
Star: Crit Rate
Planet: ATK

Substats:
Crit Rate> PEN> DMG Bonus> ATK%

Universal Card: Trust
Revelation Card: Wealth

2-Set Effect: Damage taken is reduced by 8%.
Set 4 Effect: Immediately upon entering combat 25% of HIGHLIGHT Energy, and the HIGHLIGHT Energy recovery effect cannot be activated twice.

Mainstats:
Sun: HP
Moon: ATK
Star: ATK
Planet: SPD/ATK

Substats:
ATK> SPD

Universal Card: Virtue
Revelation Card: Determination

2 Set Effect: Blessing Damage 10%.
4 Set Effect: Critical Chance of Blessing modifiers is increased to 12%

Mainstats:
Sun: HP
Moon: ATK
Star: Crit Rate/ Crit DMG (if A1)
Planet: ATK

Substats:
Crit rate> Crit DMG> DMG Bonus> ATK

Universal Card: Sincerity
Revelation Card: Joy

Set Effect: Increases Throwing Damage 10%.
4 Set Effect: Increases your damage dealt by 15% when dealing Flail damage. If there are 3 or more enemies, your damage is increased by 15%, lasting for 2 rounds.

Mainstats:
Sun: HP
Moon: Healing Bonus
Star: ATK
Planet: ATK/SPD

Substats:
ATK> DMG Bonus> SPD

Universal Card: Wisdom
Revelation Card: Repession
2-Set Effect: Physical Damage is increased by 10%.
Set 4 Effect: Whenever you deal damage with an ability, you gain Wanted,
increasing your Attack Damage by 5% for 2 turns (stacks 6 times).

Mainstats:
Sun: HP
Moon: ATK
Star: AT
Planet: ATK

Substats:
AILMENT ACC> PEN> ATK MULT%> ATK

Universal Card: Determination
Revelation Card: Duty
2-Set Effect: HP is increased by 12%.
Set 4 Effect: Grants all allies Life, Offense, and Defense gained during battle by 8%.

Mainstats:
Sun:HP
Moon: ATK
Star: CRIT RATE
Planet: ATK

Substats: CRIT RATE> ATK

Universal Card: Wisdom
Revelation Card: Joy
2Set Effect: Increases Throwing Damage 10%.
Set 4 Effect: Increases your damage dealt by 15% when dealing Flail damage. If there are 3 or more enemies, your damage is increased by 15%, lasting for 2 rounds.

Mainstats:
Sun:HP
Moon:ATK MULT%
Star: AILMENT ACC
Planet:ATK

Substats:
ATK MULT%> CRIT RATE> CRIT DAMAGE> ATK MULT

Universal Card: Determination
Revelation Card: Prudence
+2 set effect: speed 3 Reduced and attack power 18%.
+4 set effects: stocks increase 16%.

Mainstats:
Sun:HP
Moon: ATK
Star: CRIT RATE
Planet: ATK

Substats:
CRIT RATE> CRIT DMG> ATK> ATK MULT%

Universal Card: Wisdom
Revelation Card: Virtue
+2 Set Effect: Blessing Damage 10%.
+Set 4 Effect: Critical Chance of Blessing modifiers is increased to 12%

Mainstats:
Sun:HP
Moon: ATK MULT%
Star: Crit Damage
Planet: ATK

Substats:
CRIT DMG> CRIT RATE> ATK MULT%> ATK

Universal Card: Creation
Revelation Card: Worry
+2Set Effect: Increases SP Recovery 80%.
+Set 4 Effect: Immediately upon entering combat 25% of HIGHLIGHT Energy, and the HIGHLIGHT Energy recovery effect cannot be activated twice.

Mainstats:
Sun:HP
Moon:ATK
Star: SP RECOVERY%
Planet: SP RECOVERY%

Substats:
SP Recovery%> CRIT DAMAGE> ATK

Universal Card: Acceptance
Revelation Card: Dispute
2-Set Effect: Increases Fire Damage by 10%.
4-Set Effect: Attack power is increased by
15%. If the enemy is weak to fire, this effect applies twice.

Mainstats:
Sun:HP
Moon:ATK MULT%
Star:CRIT DAMAGE/CRIT RATE
Planet:ATK

Substats:
Crit DMG> Atk> ATK MULT%> ATK

Universal Card: Faith
Revelation Card: Futility
+2-Set Effect: Attack is increased by 12%.
+4-Set Effect: Increases
Effectiveness for 2 turns by 30% Increases Effectiveness by 30% fore 2 turns. After giving TECHNICAL, gain the same effect again.

Mainstats:
Sun:HP
Moon: ATK MULT
Star: AILMENT ACC
Planet: ATK

Substats:
AILMENT ACC >CRIT RATE >CRIT DAMAGE >ATK MULT >ATK

Universal Card: Freedom
Revelation Card: Disappointment
+2-Set Effect: Attack is increased by 12%.
+Set 4 Effect: When dealing damage with a Persona Skill, if the damage dealt by the Persona Skill is the different from the damage dealt by your previous Persona Skill, the damage dealt by this Persona Skill is increased by 25%

Mainstats:
Sun:HP
Moon:ATK%
Star:Crit Rate
Planet:ATK

Substats:
CRIT RATE> CRIT DAMAGE> ATK> ATK MULT%