Cheapest priced copy (Wilds of Eldraine): $2.79 at Card Kingdom, near mint, their price list as of .
Yenna, Redtooth Regent 
Legendary Creature — Elf Noble · 4/4 · Rare · Wilds of Eldraine · #365
{2}, {T}: Choose target enchantment you control that doesn't have the same name as another permanent you control. Create a token that's a copy of it, except it isn't legendary. If the token is an Aura, untap Yenna, then scry 2. Activate only as a sorcery.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
4 printings · $2.79 to $8.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Wilds of Eldraine Promos | 219p | Rare | $6.99 | $8.99 |
| Wilds of Eldraine Promos | 219s | Rare | — | $5.49 |
| Wilds of Eldraine | 219 | Rare | $2.79 | $2.99 |
| Wilds of Eldraine | 365 | Rare | $4.49Out of stock | $7.99 |
5 rulings from Wizards of the Coast
- 1 September 2023Any enters-the-battlefield abilities of the copied enchantment will trigger when the token enters the battlefield. Any "as [this enchantment] enters the battlefield" or "[this enchantment] enters the battlefield with" abilities of the enchantment will also work.
- 1 September 2023If something becomes a copy of the token, the copy also isn't legendary.
- 1 September 2023Except for the listed exceptions, the token copies exactly what was printed on the original enchantment and nothing else (unless that enchantment is itself copying something else; see below). It doesn't copy whether that permanent is tapped or untapped, whether it has any counters on it or Auras attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on.
- 1 September 2023If the copied enchantment is copying something else, then the token enters the battlefield as whatever that creature copied, with the stated exceptions.
- 1 September 2023If the copied enchantment has {X} in its mana cost, X is 0.