Professor Birch's Observations (159/160) [XY: Primal Clash] Machine Set: Cybernetic Revolution Card type:

Set: Cybernetic Revolution Card type: Normal Trap Rarity: Ultimate Rare You can only activate this card when your opponent declares an attack with a monster

If this card with Xyz Material is sent to the Graveyard: You can target 1 "tellarknight" monster in your Graveyard

Set: EX: Holon Phantoms Type: Colorless Rarity: Holo Rare Retreat cost: Colorless

you can select and destroy up to 3 Spell or Trap Cards on the field

Set: Expedition: Base Set Type: Water Rarity: Common Retreat cost: Colorless

Professor Birch's Observations (159/160) [XY: Primal Clash] Machine Set: Cybernetic Revolution Card type:Set: XY: Primal Clash Type: Supporter Rarity: Ultra Rare