Item lock is strong in general because most decks have to rely on Items for Pokmon search, recovery, and in the case of Dark decks, Energy acceleration, so getting an early Item lock can completely deny your opponent from setting up or being able to stream enough attackers to keep up with Gothitelle
This also works with the Filigree Sylex's final ability when one needs to finish the job quickly
Graded Population Report: Pikachu [1999-2000] #58 Visualize the distrbution of grades in the chart
It's a small value engine, but it is definitely not among the most powerful artifacts in the game like Black Lotus, the five Moxes or Time Vault
If the copied permanent is a token, the token that's created copies the original characteristics of that token as stated by the effect that created that token, with the stated exceptions
Strategic Design: Cards are carefully selected to offer a balanced gameplay experience