Helm of Chatzuk [Summer Magic / Edgar] Core Set 2019 and it gains ATK equal

and it gains ATK equal to its original ATK

Whenever a creature with power 4 or greater enters the battlefield under your control

Set: King's Court Card type: Xyz/Effect monster Rarity: Collector's Rare Attack: 3000 Defense: 2000 3 Xyz Monsters with the same Rank

Set: Legends Type: Legendary Creature — Human Warrior Rarity: Rare Cost: {4}{R}{G} When Stangg enters the battlefield

Set: Portal Three Kingdoms Type: Legendary Creature — Human Advisor Rarity: Rare Cost: {1}{U}{U} {T}: Return Lady Sun and another target creature to their owners' hands

Helm of Chatzuk [Summer Magic / Edgar] Core Set 2019 and it gains ATK equalSet: Summer Magic Edgar Type: Artifact Rarity: Rare Cost: {1} {1}, {T}: Target creature gains banding until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding a player controls are blocking or being blocked by a creature, that player divides that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)