
Whenever Tetzin or another double-faced artifact you control enters, millmillPut that many cards from the top of a library into its owner's graveyard. three cards. You may put an artifact card from among them into your hand.
CraftCraft, Exile this artifact, Exile the six from among other permanents you control and/or cards from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery. with six artifacts
(
, Exile this artifact, Exile the six from among other permanents you control and/or cards from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)
VigilanceVigilanceAttacking doesn't cause this creature to tap., trampletrampleExcess combat damage it deals to a blocker carries over to the player or planeswalker it's attacking.
Whenever The Golden-Gear Colossus enters or attacks, transformtransformTo mill a card, put the top card of your library into your graveyard. up to one other target double-faced artifact you control. Create two 1/1 colorless Gnome artifact creature tokens.
Hover an underlined rule to see what it means.
Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.