Karn, Silver Golem [Urza's Saga] Apocalypse No more than one creature

No more than one creature can block each combat

you may sacrifice any number of creatures

This effect doesn't remove White Ward

return the first card to the battlefield under its owner's control at the beginning of the next end step

Set: Legends Type: Legendary Creature — Human Warrior Rarity: Rare Cost: {4}{R}{G}{W} When Hazezon Tamar enters the battlefield

Karn, Silver Golem [Urza's Saga] Apocalypse No more than one creatureSet: 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.