Keywords From Expert-Level Expansions (mechanics)
The following are keywords currently in use in the card sets other than the Core Sets and the Un-sets (parody card sets; See Unglued). Most of these keywords appear in one block and are never used again; a major exception is the Time Spiral block, which re-used many keyword mechanics from Magic's history due to its "nostalgia" theme.
Read more about this topic: List Of Magic: The Gathering Keywords