Skill Cards allow you to teach specific skills to any Persona. They are obtained through Persona Itemization (Electric Chair), found in Mementos, or purchased from the antique shop. Yusuke's Confidant (Emperor) allows you to duplicate Skill Cards, making them incredibly valuable.
Usage:
- Fill Gaps: Teach a Persona a skill it lacks (e.g., a healing spell to a physical attacker).
- Optimize Builds: Give powerful passive skills (e.g., Amp/Boost skills) to Personas.
- Cover Weaknesses: Teach a Persona a skill that covers its weakness (e.g., Null Fire to a Persona weak to Fire).
Prioritize duplicating rare and powerful Skill Cards like 'Spell Master', 'Ailment Boost', or 'Amp' skills. This allows you to create truly optimized Personas.