| Mysterious Triangle | |
| Type: | Quick-Play Spell |
| Text: | Destroy 1 monster on the field with an A-Counter. Then, you can Special Summon 1 Level 4 "Alien" monster from your Deck. Destroy it during the End Phase. |
| Password: | 53291093 |
| Printings: |
Crimson Crisis
(CRMS-EN062) |