Periodic Stages are various events that are only available for a set period of time, usually 1 or 2 weeks. After that period, the stages become unavailable again. Most events are a series of stages, where rare monsters not normally available become acquirable via battle drop.
| Periodic Stages | |
|---|---|
| The Ancient Dragon |      |
| The Ancient Guardian |    |
| The Ancient Terrors |      |
| Chinese Paladin Heroes |      |
| Cyborgs' Companions |      |
| Dazzle of the Stars |      |
| Death Riders |      |
| Demonic Dragons |      |
| Descent of Spirit |      |
| Frustration of Youkai |      |
| Haunted Objects |      |
| Hermits |  |
| Jotunns of the North |      |
| Legends of the Beast Partners |      |
| Mercenaries of the Cat Duke |      |
| Mind-controlling Angeloid |      |
| Monster Strike |      |
| Mystic Rogues |       |
| Pantheon of Babylon |      |
| Peculiar Creature on the Plain |      |
| Prairie Creature | |
| Residents of Wonderland |      |
| Shikigami of Shugendo |      |
| The Seven Deadly Sins |       |
| Songstress of the Stars |     |
| The Three Moirai |     |
| Time Warp from Xuan-Yuan |      |
| The Transformed Maidens |      |
| Urban Legends |      |
| Visitors from Afar |      |
| The Wonderful Fairytale |      |
| Other | |
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