2021 booster box Mystery Booster: Convention Edition Booster Box (2021)
Description
these are the only 3 i can think of off the top of my head?

Burning Beast

Display box of 36 booster packets Unstable contains 15 randomly inserted silver-bordered cards per booster pack A silver-bordered, non-tournament-legal product

[Colorless] Spinning Attack 10.

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Shipping Estimate
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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26