Card Zodiac
Twelve collector archetypes. One per birth month. Enter your birthday — reveal your sign, your ruling sport, your lucky number, and your ruling grail card.
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All 12 Signs
Frequently Asked Questions
▶How is my Card Zodiac sign determined?
Your sign is determined by your birth month. Each of the 12 months maps to one collector archetype. Unlike traditional astrology (which uses 30-day cusps), Card Zodiac uses calendar months as whole units — if you were born any day in January you are The Archer, any day in February you are The Goalkeeper, and so on. Within the month, your birth day is used to pull a deterministic ruling grail card from your sign's player pool.
▶Is this based on real astrology?
No. Card Zodiac is a collector personality framework loosely inspired by zodiac archetypes. The 12 signs represent collector behavior patterns (patience, aggression, completion, hoarding, prospecting, etc.) mapped to birth months. It is for entertainment, not divination. Nobody's collection performance depends on what month they were born — but it is a fun way to discover a collecting style that might resonate.
▶What does the "ruling grail" mean?
Each sign has one iconic card from the CardVault database that represents the pinnacle of that archetype. The Archer (January) is ruled by Mickey Mantle — the vintage precision-hunter's ultimate target. The Sprinter (May) is ruled by Michael Jordan's 1986 Fleer rookie — momentum's greatest modern card. Your ruling grail is the real card in your sign's ruling player pool with the highest value, pulled live from the 9,840-card database.
▶What are compatible and rival signs?
Compatible signs share collector DNA — similar patience levels, similar eras, similar risk appetites. The Archer (patient vintage) is compatible with The Veteran (long-hold) and The Grail Hunter (high-value vintage). Rival signs collect in opposite ways — The Archer's rival is The Sprinter (impulsive momentum). Trading within your compatible set feels natural. Trading with your rival means fundamental disagreement on what makes a card valuable.
▶Can I share my Card Zodiac result?
Yes. The result screen has a Copy Result button that pushes a formatted text block to your clipboard — your sign name, emoji, ruling sport, lucky jersey number, ruling grail card, and the CardVault URL. Paste it in Discord, Reddit, X, or an iMessage to a collecting friend. The format is designed to fit in one text message and start a "what sign are you?" conversation.
▶Why these 12 archetypes?
The 12 signs — Archer, Goalkeeper, Rookie, Slugger, Sprinter, Closer, Veteran, Scout, Trader, Completist, Hoarder, Grail Hunter — cover the major axes of collector behavior: patience (Archer/Veteran) vs impulse (Sprinter), set-completion (Completist) vs grail-hunting (Grail Hunter), quantity (Hoarder) vs quality (Grail Hunter), prospect (Scout/Rookie) vs established (Veteran), trading (Trader/Closer) vs holding (Veteran/Archer). Almost any collecting style maps to one of the 12.