R
Happy Miscalculation
What is this card?
The Happy Miscalculation skill card (R · Anomaly · Mental) in Gakuen Idolmaster: cost, effects and trigger mechanics during Produce.
How to get this card
Picked up during a Produce run (lesson/audition/shop) — not tied to any single P-idol.
The upgraded (+) version of this card
Card mechanics
| Plan | Anomaly |
| Card type | Mental |
| Cost | Costs 3 |
| Actions | Genki +5 Full Power charge +2 If Full Power charge ≥ 1 → Switch stance: Preservation |
| Use limit | 1 |
Other Anomaly cards
FAQ
Where do you get Happy Miscalculation?
Picked up during a Produce run (lesson/audition/shop) — not tied to any single P-idol.
Is Happy Miscalculation a strong card, and when should you use it?
This is a R-rarity card in the Anomaly plan. Costs 3. Limited to 1 use(s) per turn.
What's different about the upgraded (+) version?
The upgraded (+) version of this card is Happy Miscalculation+, same Anomaly plan and R rarity — with stronger effects, see that card's Mechanics table.