At the beginning of each player's upkeep, that player chooses target player who controls more creatures than they do and is their opponent. The first player may reveal cards from the top of their library until they reveal a creature card. If the first player does, that player puts that card onto the battlefield and all other cards revealed this way into their graveyard.
Dauntless Dourbark's power and toughness are each equal to the number of Forests you control plus the number of Treefolk you control. This creature has trample as long as you control another Treefolk.
Whenever Karn 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.
After a hundred failed experiments, Urza was stunned to find that common silver passed through the portal undamaged. He immediately designed a golem made of the metal.