The card's rarity is twofold: It's printed on the newly introduced Cosmos Holo, and it's one of very few non-ghost type Pokmon in the set
Relic of Progenitus has been one of the premium answers to some strategies: Its cheap, and can play a grindy game removing one card per turn, or one-shot-exiling both graveyards at the right time
That is just fluff though, here is the more crunchy subject of archetypal facts: Attribute: Various (Dark, Fire, Water, Wind) Type: Various (Aqua, Beast, Beast-Warrior, Dragon, Fiend, Winged Beast) Levels: 2 and 8 Extra Deck usage: Xyz As you can see, there is no common Type or Attribute, which makes the use of anything Type- or Attribute-specific rather complicated
You can XYZ summon this card in 2 ways: You can either overlay two level 12 monsters (and lets be real, who on Earth would do that?!) or you can simply have an XYZ monster battle
Popular Among Sealed Collectors
In fact, it just lasts one turn