Search your library and/or graveyard for a creature card with mana value X or less and put it onto the battlefield. If you search your library this way, shuffle. If X is 10 or more, creatures you control get +X/+X and gain haste until end of turn.
When Urza, Lord High Artificer enters, create a 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control."Tap an untapped artifact you control: Add .: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.
Whenever an opponent draws a card, that player may pay . If the player doesn't, you create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")
This spell costs less to cast, where X is the greatest power among creatures you control.: Add . You gain 2 life.Whenever a nontoken creature you control enters, put a +1/+1 counter on it and draw a card.
Eminence — As long as The Ur-Dragon is in the command zone or on the battlefield, other Dragon spells you cast cost less to cast.FlyingWhenever one or more Dragons you control attack, draw that many cards, then you may put a permanent card from your hand onto the battlefield.
This spell costs less to cast, where X is the greatest power among creatures you control.: Add . You gain 2 life.Whenever a nontoken creature you control enters, put a +1/+1 counter on it and draw a card.
