Chimaera, the Master of Beasts [WCPS-EN701] Ultra Rare Dark Saviors and only if you control

and only if you control no face-up Synchro Monsters

it gains this effect

you can halve the ATK and DEF of 1 face-up monster your opponent controls

Set: Astral Pack 1 Card type: Effect Monster Rarity: Ultimate Rare Attack: 2100 Defense: 0 Cannot be Normal Summoned/Set

When this card is Special Summoned by this effect

Chimaera, the Master of Beasts [WCPS-EN701] Ultra Rare Dark Saviors and only if you controlSet: World Championship Series Card type: Effect Monster Rarity: Ultra Rare Attack: 3000 Defense: 3000 This card cannot be special Summoned. This card must be Tribute Summoned by Tributing 3 Beast Type monsters on your side of the field. If this card attacks your opponent's Life Points directly and makes them 0, the controller of this card wins the Match.