Scrapper Champion [Aether Revolt] Zombie Goblin Artifacts and creatures your opponents

Artifacts and creatures your opponents control enter the battlefield tapped

then proliferate

Set: Betrayers of Kamigawa Type: Artifact Rarity: Rare Cost: {5} The "legend rule" doesn't apply

A rapid and catastrophic decline

Scrapper Champion [Aether Revolt] Zombie Goblin Artifacts and creatures your opponentsSet: Aether Revolt Type: Creature Human Artificer Rarity: Uncommon Cost: {3}{R} Double strike (This creature deals both first strike and regular combat damage.) When Scrapper Champion enters the battlefield, you get {E}{E} (two energy counters). Whenever Scrapper Champion attacks, you may pay {E}{E}. If you do, put a +1 +1 counter on it.