Cheapest priced copy (Modern Horizons 3 Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Aggressive Biomancy 
Sorcery · Rare · Modern Horizons 3 Commander · #121
Create X tokens that are copies of target creature you control, except they have "When this token enters, it fights up to one target creature you don't control."
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.49 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons 3 Commander | 69 | Rare | $0.99 | $0.99 |
| Modern Horizons 3 Commander | 121 | Rare | $0.49 | — |
5 rulings from Wizards of the Coast
- 7 June 2024If the copied creature is copying something else, then the tokens enter the battlefield as whatever that creature copied, with the listed exception.
- 7 June 2024If the copied creature has {X} in its mana cost, X is 0.
- 7 June 2024Any enters-the-battlefield abilities of the copied creature will trigger when the tokens enter the battlefield. Any "as [this creature] enters the battlefield" or "[this creature] enters the battlefield with" abilities of the creature will also work.
- 7 June 2024If the copied creature is itself a token, the tokens created by Aggressive Biomancy copy the original characteristics of that token as stated by the effect that created it, with the listed exception.
- 7 June 2024The tokens copy exactly what was printed on the original creature and nothing else, with the listed exception (unless that creature is itself copying something else; see below). They don't copy whether that creature 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.