Grindstone (39) [Masterpiece Series: Kaladesh Inventions] Gold you may discard Electrode ex

you may discard Electrode ex and all the cards attached to it (this counts as Knocking Out Electrode ex)

This card is not destroyed as a result of battle at any time or by the effects of Spell or Trap Cards

Number: DR04-EN181 Rarity: Rare Attribute Monster Type/Card Type: DARK Warrior/Normal Monster Level: 3 A / D: 600 / 800 Description: When this card in attack mode on your field

During your End Phase: Tribute 1 other monster or destroy this card

you can discard 1 card and declare 1 Attribute

Grindstone (39) [Masterpiece Series: Kaladesh Inventions] Gold you may discard Electrode exRarity: M #: 39 Card Type: Artifact Description: 3, T: Target player puts the top two cards of his or her library into his or her graveyard. If both cards share a color, repeat this process. Flavor: "All attempts to halt the machine failed. We must find a way to repurpose it." Consulate engineer's log