Court of Cards X TRAP Continuous If you control no monsters, or only control "Queen's Knight", "King's Knight", and/or "Jack's Knight": You can Special Summon 1 "Queen's Knight", "King's Knight", or "Jack's Knight" from your hand or GY
Mythic Rares were introduced in the Shards of Alara block in 2008, and have had a dramatic impact on the financial landscape of the game, draining value from the lower rarities in much the same way that Expeditions (Battle for Zendikar/Oath of the Gatewatch) and Masterpieces (Kaladesh) do to the expected value of booster packs in their respective sets
Some of my favorites are the Salamence ex SIR, Articuno SIR, and Ns Zoroark ex SIR
The Pain Lands Having been first printed in Ice Age and the cycle completed in Apocalypse , the pain lands have been around for absolutely ages (pun definitely intended) and I believe are the most reprinted rare duals in the games history