Chaos King Archfiend [TSHD-EN041] Ultra Rare Professor Program Promos Discard 1 card from your

Discard 1 card from your hand to select and destroy 1 face-up monster on the field with an original ATK that is less than the ATK of this card

in addition to your Normal Summon/Set

Once per turn: You can target 1 other face-up card you control

The ATK of the selected monster becomes 3000 until the end of this turn

Set: Black & White: Boundaries Crossed Type: Dragon Rarity: Secret Rare Retreat cost: Colorless

Chaos King Archfiend [TSHD-EN041] Ultra Rare Professor Program Promos Discard 1 card from yourSet: The Shining Darkness Card type: Synchro Effect Monster Rarity: Ultra Rare Attack: 2600 Defense: 2600 1 Fiend type Tuner monster + 1 or more non Tuner monsters When this card declares an attack, you can switch the ATK and DEF of all face up monsters your opponent controls, until the end of the Battle Phase.