Helm of Chatzuk [Beta Edition] Dinosaur Avatar Whenever a Dragon you control

Whenever a Dragon you control dies while Boneyard Scourge is in your graveyard

defending player sacrifices two permanents

Set: Planechase Type: Creature — Zombie Rarity: Uncommon Cost: {2}{B}{B} Zombie spells you cast cost {1} less to cast

Set: Beta Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one basic land type with another

Set: Zendikar Expeditions Type: Legendary Land Rarity: Mythic {T}: Add {C}

Helm of Chatzuk [Beta Edition] Dinosaur Avatar Whenever a Dragon you controlSet: 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.)