Cid
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 An engineer, tech wizard, and first-rate pilot.
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| Kana | シド | ||||||
| Romaji | Shido | ||||||
| JP Set | 1 | ||||||
| EN Set | 1 | ||||||
| Class | Type | Attributes | |||||
| Common | Cost | Support | Upright | ||||
| Effect | |||||||
| Lowers the costs of a 6★ Medal by 1. | |||||||
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 An engineer, tech wizard, and first-rate pilot.
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| Kana | シド 5 | ||||||
| Romaji | Shido 5 | ||||||
| JP Set | 7 | ||||||
| EN Set | 1 | ||||||
| Class | Type | Attributes | |||||
| Common | Cost | Support | Upright | ||||
| Effect | |||||||
| Lowers the costs of a 6★ Medal by 5. | |||||||
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 An engineer, tech wizard, and first-rate pilot.
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| Kana | シド 10 | ||||||
| Romaji | Shido 10 | ||||||
| JP Set | 7 | ||||||
| EN Set | 1 | ||||||
| Class | Type | Attributes | |||||
| Common | Cost | Support | Upright | ||||
| Effect | |||||||
| Lowers the costs of a 6★ Medal by 10. | |||||||
Cid is a Common Cost Medal in Kingdom Hearts Unchained χ / Union χ.
Cid, when fused with a 6★ Medal, reduces its deck cost by 1. A Medal can have its cost reduced a maximum of 10 times.
Five Cid Medals can be melded together to create a Cid 5 Medal, which will reduce a 6★ Medal's cost by 5. Two Cid 5 Medals can be melded into a Cid 10 Medal, which will reduce a 6★ Medal's cost by 10. These 'stack' Medals were introduced on March 17, 2016 as a space-saving measure.[1]
You can obtain Cid Medals by proceeding through the Coliseum Quests, through certain events, in certain Avatar Boards, and as a bonus Medal in Rare Draws during certain promotions.
You can also obtain Cid Medals by beating a level 5+ Trident Tail Ω.