pokemon legendary treasures card list RC common/Uncommon single card Full Legendary Treasures Card List (Full – Legendary Treasures - Etsy

This means that it is part of the main set rather than a unique card

For your investment you get a tap ability to sacrifice an artifact you control with mana value X

Since you can make a copy at instant speed, you can ramp by copying a Sol Ring or an Arcane Signet to have enough mana for an instant spell that can counter an opponents spell or destruction spell targeting a creature

Black Black actually doesn't have too many heavy hitters here, which is fair since it's one of the best performing colors in Standard currently

The Phoenix Heart, Magic: The Gathering (2014) Richard Garfield Event Special Promo has been graded CGC 9, the highest graded example in the CGC Trading Cards Population Report