- Ice Chain
- Ice Hand
- Ice Knight
- Ice Mirror
- Iceberg Ocean
- Icebergdon
- Icicle Sacrifice
- Icy Crevasse
- Ido the Supreme Magical Force
- Illegal Business Practices
- Illegal Keeper
- Illegal Summon
- Illusion Brigadier
- Illusion Destruction
- Illusion Gate
- Illusion Ice Sculpture
- Illusionist Faceless Mage
- Imitation
- Immortal Class
- Immortal Homeostasis
- Impenetrable Attack
- Imperial Custom
- Imperial Manners
- Imperial Order