Karn, Silver Golem [Urza's Saga] Ogre Shaman you lose 1 life and

you lose 1 life and that opponent gains 1 life

They only specify the consequences should you fail

Set: Beta Edition Type: Creature — Shapeshifter Rarity: Rare Cost: {3}{U}{U} You may have Vesuvan Doppelganger enter the battlefield as a copy of any creature on the battlefield

the more I gain hope that Volrath and his cursed stronghold will one day fall

you'll understand why

Karn, Silver Golem [Urza's Saga] Ogre Shaman you lose 1 life andSet: Urza's Saga Type: Legendary Artifact Creature Golem Rarity: Rare Cost: {5} Whenever Karn, Silver Golem blocks or becomes blocked, it gets 4 +4 until end of turn. {1}: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn.