Greninja BREAK

This is a fresh card at less than three weeks old, and you should expect prices to drift lower over the coming months—Pokémon typically sees sustained drops for the first three months after release. At £5.88, it's worth holding off unless you need it urgently, as there's a good chance to pick up copies cheaper in the next few weeks.

• CautionSet is 2 weeks old. Prices typically fall for the first three months after release.