Si's..."Compendium"

PASSIVE:The Persona of the Moon Arcana are commonly Persona excelling in Physical-based attacks. Users have a latent 15% boost in pierce-based skills and pierce-based soul bound weaponry attacks.
Skill 1: Double Fangs | Inflicts a small amount of Pierce damage twice to one enemy. | 8% HP | Tier 1
Skill 2: Regenerate 2 | Recovers 4% of max HP on each user turn | Passive | Tier 2
Skill 3: Arrow Rain | Inflicts a moderate amount of Pierce damage twice to all enemies. | 18% HP | Tier 2
Skill 4: Twin Shot | Inflicts a moderate amount of Pierce damage twice to one enemy. | 16% HP | Tier 2 (Unlocked once defeating ten Shadows; Must be Tier 2 or below)
Skill 5: Diarahan | Recovers all HP to one ally. | 20 SP | Tier 3 (Must have used your Shadow Frenzy ability to defeat atleast three enemies in one battle; Must be Tier 3 or lower)
Skill 6: Invigorate 3 | Recovers 7 SP on each user turn | Passive | Tier 3 (Unlocked once defeating thirty Shadows; Must be Tier 3 or lower)
Skill 7: Primal Force | Inflicts a massive amount of Pierce damage to one enemy. | 20% HP | Tier 4 (Unlocked once using your Shadow Frenzy to successfully defeat a Persona-User/ASSW/ or Attendant; Must be a Tier 4 Skill or Lower)
Skill 8: Unshaken Will | Becomes immune to all mental ailments. | Tier 4 (Unlocked after defeating your fifth Dungeon Master and defeating 60 Shadows in combat; Must be a Tier 4 Skill or Lower)

The Shadow Selves have a special ability called the "Shadow Frenzy" allowing them to cast skills at half the price, and link Tier skills like a chain. For Example: If a Shadow Self were to go into a Frenzy, they could cast a Tier 1 skill and immediately follow that Tier 1 skill with a Tier 2 skill in the same post. The only requirement is that the skills being chained must be the same type, such as Garu to Garula, or Magaru to Magarula. Also you can only link up to three skills total. This Shadow Frenzy only lasts for three (3) turns, and once it ends it can not be used again the entire topic and all following skills will be weaker by 50% (unless a special item is used).