Chromium, the Mutable [Core Set 2019] H13 increase the ATK of all

increase the ATK of all DARK monsters by 500 points and decrease the ATK of all LIGHT monsters by 400 points

By appearing in places miles apart at the same time

Set: Ice Age Type: Artifact Rarity: Rare Cost: {4} {X}

Set: World Championship 2007 Card type: Effect Monster Rarity: Super Rare Attack: 1000 Defense: 0 When this card is destroyed and sent to the Graveyard

Chromium, the Mutable [Core Set 2019] H13 increase the ATK of allSet: Core Set 2019 Type: Legendary Creature Elder Dragon Rarity: Mythic Cost: {4}{W}{U}{B} Flash This spell can't be countered. Flying Discard a card: Until end of turn, Chromium, the Mutable becomes a Human with base power and toughness 1 1, loses all abilities, and gains hexproof. It can't be blocked this turn.