Like most Pokmon cards, the value of Ditto depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Detective Pikachu)
This would mean Dromar's Charm would have to be about twenty times better than the worst mono card in my cube to obtain a space
Combined with Exploration or Fastbond, the Horn quickly becomes an engine from which you can draw three, four, five, or more cards a turn, at no cost
With its powerful Azure Pulse ability and flashy artwork, this card captures everything people love about Rayquaza
Historically, illustrators like Arita have allowed for three cards to be signed per individual, with one containing a sketch
The modern card sizes also create opportunities for different formats and collectibles