Karn, Silver Golem [Urza's Saga] Dack then draw seven cards and

then draw seven cards and your life total becomes 20

it's an artifact creature with power and toughness each equal to its converted mana cost

{T}: Add {G}

you gain 1 life for each of those keywords

Set: Mirrodin Type: Artifact Rare Cost: {3} Imprint — When Extraplanar Lens enters the battlefield

Karn, Silver Golem [Urza's Saga] Dack then draw seven cards andSet: Urza's Saga Type: Legendary Artifact Creature Golem 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 converted mana cost until end of turn.