Rainbow Shimmers (ADK-018) [Advent of the Demon King]

[Quickcast] Choose one - Look at the top X cards of your deck, where X is the number of gems you control. Put a card from among them into your hand and the rest on the bottom of your deck in a random order; or destroy target non-magic stone, non-J/resonator entity with total cost X or less, where X is the number of gems you control.