Magical Scientist [MFC-073] Common 138 you can negate the effects

you can negate the effects of all face-up monsters your opponent controls

and return them to your Deck

Set: XY: BREAKthrough Type: Lightning Rarity: Rare Retreat cost: 0

During your opponent's 4th Standby Phase after this card's activation

Magical Scientist [MFC-073] Common 138 you can negate the effectsSet: Magician's Force Card type: Effect Monster Rarity: Common Attack: 300 Defense: 300 Pay 1000 Life Points to Special Summon 1 Level 6 or lower Fusion Monster from your Fusion Deck in face up Attack or Defense Position. That Fusion Monster cannot attack your opponent''s Life Points directly, and is returned to your Fusion Deck at the end of the turn.