While face-up in a player's Pendulum Zones, Pendulum Monsters are treated as Spell Cards that remain on the field, though of no particular Spell type
Another convenient feature is that when you send a Ritual or Fusion Monster to your deck, you have the option of sending along with it the necessary cards for summoning it without having to locate them
There are a couple of ways around this - one of the best fixes would just be to predict the next \(N\)-steps (e.g
While there might be one seller of a card for $14 post-buyout, the market price will show what people are really paying for the card
During your pre-combat main phase, you cast it for its mana cost
If you Special Summon "Amelia, the Braveheart", "Amelia, the Silver Sword", or "Amelia, the White Saber" by this effect