Intruder Alarm [Mystery Booster] Chronicles "I have seen and heard

"I have seen and heard much here

Set: Collectors’ Edition Type: Artifact Rarity: Rare Cost: {2} At the beginning of each player's draw step

Incensed by their opponents' unrelenting taunts

Pay 1 life: Add {W} or {B}

Set: Commander's Arsenal Oversized Type: Legendary Artifact Creature — Golem Rare Cost: {5} Whenever Karn

Intruder Alarm [Mystery Booster] Chronicles "I have seen and heardSet: Mystery Booster Type: Enchantment Rarity: Rare Cost: {2}{U} Creatures don't untap during their controllers' untap steps. Whenever a creature enters the battlefield, untap all creatures. One footstep among many is silent. One footstep alone is deafening.