Just as a little bonus, its ultimate ability is also pure value, giving you an emblem that turns the lands in your hand into flashback-versions of the spells in your graveyard, cause why not
We all know how common life gain is at the kitchen table
You can also go with the hard ramp route by using Arbor Elf+Utopia Sprawl For dragons to capitalize on, I would recommend guys like Goldspan Dragon or Terror of the Peaks or Obsidian Charmaw or Demanding Dragon
However, the part thats causing some mixed opinions is the text in the lower right corner of the card: Mega Evolution ex rule: When your Mega Evolved Pokmon ex is Knocked Out, your opponent gets 3 points. The rule mirrors the one found on cards in the main Pokmon TCG game
Later, when Gansley used the effect of "Ashingray", he too used the shotgun shuffle, though at the time it was a virtual data deck, so no real cards would be damaged