Keldon Warlord [Beta Edition] AR2 Set: Sword & Shield: Chilling

Set: Sword & Shield: Chilling Reign Type: Water Rarity: Secret Rare Retreat cost: Colorless

You can discard this card to the GY

Set: Platinum: Base Set Type: Psychic Rarity: Holo Rare Retreat cost: Colorless

which was Summoned this way

When a monster(s) is Normal or Special Summoned to your opponent's side of the field in face-up Attack Position: That monster(s) loses 2000 ATK

Keldon Warlord [Beta Edition] AR2 Set: Sword & Shield: ChillingSet: Beta Edition Type: Creature Human Barbarian Rarity: Uncommon Cost: {2}{R}{R} Keldon Warlord's power and toughness are each equal to the number of non Wall creatures you control.