The Fabled Unicore [HAC1-EN147] Common Synchro/Tuner Monster Set: Spell Ruler Card type:

Set: Spell Ruler Card type: Normal Spell Rarity: Ultra Rare Look at your opponent's hand

the opponent's targeted monster loses ATK and DEF equal to the ATK of your targeted monster

and if it is a Monster Card

Set: Battle Pack Tournament Prize Cards Card type: Effect Monster Rarity: Starfoil Rare Attack: 1700 Defense: 400 If this card destroys an opponent's monster by battle: You can Special Summon 1 "Jurrac" monster with 1700 or less ATK from your Deck

destroy all monsters your opponent's side of the field

The Fabled Unicore [HAC1-EN147] Common Synchro/Tuner Monster Set: Spell Ruler Card type:Set: Hidden Arsenal: Chapter 1 Card type: Synchro Effect Monster Rarity: Common Attack: 2300 Defense: 1000 1 Fabled Tuner + 1 or more non Tuner monsters While both players have the same number of cards in their hands, negate the activation of the effects of your opponent's Effect Monsters, Spells, and Traps, and destroy those cards.