Helm of Chatzuk [Alpha Edition] Oath of the Gatewatch Prerelease Promos Haste (This creature can attack

Haste (This creature can attack and {T} as soon as it comes under your control

Set: Kaladesh Inventions Type: Artifact Creature — Thopter Rarity: Mythic Cost: {0} Flying

Whenever you cast a Merfolk spell

another target creature you control gains haste and gets +X/+X until end of turn

its owner loses half their life

Helm of Chatzuk [Alpha Edition] Oath of the Gatewatch Prerelease Promos Haste (This creature can attackSet: Alpha 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.)