Indestructible
Indestructible is a quality that some permanents have. Indestructible permanents can't be destroyed by rules or effects. It is often mistaken for a keyword; however, like unblockable, it is a word with a specific meaning in the English language, or rather it is a combination of the normal English meanings of the prefix 'un-' and suffix '-able' with the Magic-specific meaning of 'destroy'. Indestructibe permanents can still be put into their owners' graveyards by other means, such as by the "legend rule", by having zero toughness (for creatures), or being sacrificed.
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