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 'in-' and suffix '-able' with the Magic-specific meaning of 'destroy'. Indestructibe permanents can still be put into their owner's graveyard by other means, such as by the "legend rule", by being sacrificed, or in the case of creatures having zero toughness.

The first card that conferred indestructibility was Consecrated Ground in Limited Edition Alpha followed by Guardian Beast in Arabian Nights, but no other cards followed (and no formal rules existed) until Darksteel.

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