It has all the characteristics of the card (or the copy of a card) associated with it, and that player becomes its controller
Although 39 of these cards were awarded at the time, it is believed that only 10 are left in existence making each one incredibly valuable
In a way, I get it, some decks like Dragapult ex or Gardevoir ex have been dominating the format with an iron fist for the past couple of months, and people are eager to see a change
For example, a friendly Elf can be pumped with Immaculate Magistrate, then fight an opponent's creature
Cards like Enduring Renewal, Sigil of the New Dawn, Angelic Renewal, and Valkyries Call provide either one-time recursion or permanent recursion with drawbacks for a dearly departed creature
Run here Manaliths like Decanter of Endless Water or Fellwar Stone over stuff in your color identity like Commander's Sphere or Arcane Signet