1 pack trades are the best way to understand the value of trading an unopened pack
A collection that includes a Base Set Charizard (in any variant), a Shining Charizard, a Gold Star Charizard, a Charizard LV.X, a Charizard EX from the XY era, a Charizard GX, a Charizard VMAX, and a modern Charizard EX SIR tells a complete visual story of how the TCG has changed over 25-plus years, and it represents a focused, achievable goal that still carries significant prestige and value
Technically, the same is also true for Sliver Weftwinder, which also just received a sneaky rebalance
Its your top end closer
If a Pokmon your child likes is a Basic Pokmon, or if you want to include them as a lucky find, it might be okay to include about 1 or 2 of them in the 10 cards