To Reserve (Japanese: リバース Ribāsu "Reverse") is to change a card from a face-down to a face-up position, or vice versa. Players are not allowed to Reserve a face-up card face-down, except through a card effect.
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| Terms | |
|---|---|
| Duel terms | Activate • Advance Summon • Attack and effect names • Card effect • Counter • Deck • Draw • Duel • Effect Monster • Exclude • Extra Deck • Extra Monster Zone • Fusion Material • Fusion Monster • Fusion Summon • Graveyard • Level • Link Marker • Link Material • Link Monster • Link Point • Link Number • Link State • Link Summon • LP • Magic Card • Monster Card • Normal Monster • Normal Summon • Phase (Battle Phase • Draw Phase • End Phase • Main Phase • Main Phase 1 • Main Phase 2 • Standby Phase) • Release • Reverse • Reverse Effect • Reverse Monster • Reverse Summon • Ritual Monster • Ritual Summon • Set • Skill • Special Summon • Speed Duel • Summon • Synchro Material • Synchro Monster • Synchro Summon • Trap Card • Token Monster • Tuner • Turn • Xyz Material (Overlay Unit) • Xyz Monster • Xyz Summon |