Cache

Cache (Japanese: 予約する Yoyaku suru) is a term that refers to the act of placing a Cascade Spell Card from the Extra Deck to the player's Spell & Trap Zone sideways (similar to monsters in Defense Position), after having met the requirements written on the card text of that Cascade Spell Card. A Cascade Spell Card that is currently on the field after having been cached, but has not yet been activated, is referred to as a cached (Japanese: 予約しっている Yoyaku shitteiru) Cascade Spell Card. Like activation, caching starts a Chain.

While a Cascade Spell Card is cached, its effects are not applied; however, it can still be targeted, destroyed, or otherwise affected by the effects of cards like "Mystical Space Typhoon". A cached Cascade Spell Card can never have materials attached to it; if a card effect would place a Cascade Spell Card back to its cached state after having previously been activated, any materials attached to it are immediately sent to the Graveyard.