Helm of Chatzuk (LEB-) - Limited Edition Beta Number_VIS −6: You get an emblem

−6: You get an emblem with "Swamps you control have '{T}: Add {B}{B}{B}{B}

they're treated as though they don't exist

put it into your graveyard and each player returns all creature cards from their graveyard to the battlefield

If the player chooses others

Helm of Chatzuk (LEB-) - Limited Edition Beta Number_VIS −6: You get an emblemSet: Beta Edition 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.)