Monstro
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| Kana | モンストロ | ||||||
| Romaji | Monsutoro | ||||||
| JP Set | 13 | ||||||
| EN Set | 13 | ||||||
| Class | Type | Attributes | |||||
| Rare | Attack | Magic | Reversed | ||||
| STR | DEF | Trait Slots | Spirit Points | ||||
| 4308 | 4317 | 1 | 15 / 18 | ||||
| Defense Boost PSM +4 | |||||||
| Raises defense of all attributes by 1 tier for 1 turn. | |||||||
| Damage (Base) | x1.36 | Target |  All
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| Damage (3 dots) | x0 | Gauges | 3 | ||||
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| Kana | モンストロ | ||||||
| Romaji | Monsutoro | ||||||
| JP Set | 13 | ||||||
| EN Set | 13 | ||||||
| Class | Type | Attributes | |||||
| Rare | Attack | Magic | Reversed | ||||
| STR | DEF | Trait Slots | Spirit Points | ||||
| 5556 | 5567 | 1 | 15 / 18 | ||||
| Defense Boost PSM +5 | |||||||
| Raises defense of all attributes by 1 tier for 1 turn. | |||||||
| Damage (Base) | x1.40 | Target | All
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| Damage (5 dots) | x0 | Gauges | 3 | ||||
| Damage (Max) | x | SAB Tier |  3
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Monstro is a Rare Attack Medal in Kingdom Hearts Unchained χ / Union χ.
In the English version, during the 04/06/17 - 04/24/17 Anniversary Medal Carnival, players had a small chance of drawing a boosted version of Monstro that has 1,000 more base strength.