Diabolic Machine [Fifth Edition] DP47 put a shield counter on

put a shield counter on target noncommander creature you don't control

It's really quite simple

Set: March of the Machine Commander Tokens Type: Token Creature — Elemental Rarity: Common Whenever this creature becomes tapped

Burning-Tree Shaman deals 1 damage to that player

Set: Mercadian Masques Type: Basic Land — Forest Rarity: Common ({T}: Add {G}

Diabolic Machine [Fifth Edition] DP47 put a shield counter onSet: Fifth Edition Type: Artifact Creature Construct Rarity: Uncommon Cost: {7} {3}: Regenerate Diabolic Machine. "The bolts of our ballistae smashed into the monstrous thing, but our hopes died in our chests as its gears continued turning." Sevti Mukul, *The Fall of Alsoor*