Professor Birch's Observations (159/160) [XY: Primal Clash] Machine If this card attacks a

If this card attacks a face-down Defense Position monster

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

Set: Mattel Action Figure Promos: Series 3 Card type: Effect Monster Rarity: Parallel Rare Attack: 2600 Defense: 1800 During battle between this attcking card and a Defense Position monster whose DEF is lower than the ATK of this card

Set: Duelist League Promo Card type: Effect Monster Rarity: Rare Attack: 500 Defense: 500 When this card is destroyed by a card effect and sent to the Graveyard: Special Summon 1 Level 4 or lower Dinosaur-Type monster from your Deck

You can Tribute this card to negate the activation of a Spell Card

Professor Birch's Observations (159/160) [XY: Primal Clash] Machine If this card attacks aSet: XY: Primal Clash Type: Supporter Rarity: Ultra Rare