Whenever you cast a permanent spell with a mana cost that contains , double the value of X.Whenever you cast an instant or sorcery spell or activate an ability, if that spell's mana cost or that ability's activation cost contains , copy that spell or ability. You may choose new targets for the copy.
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.
Lava Dart deals 1 damage to any target.Flashback—Sacrifice a Mountain. (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Equipped creature gets +2/+2 and has protection from black and from red.Whenever equipped creature deals combat damage to a player, destroy up to one target planeswalker and up to one target artifact.Equip
Changeling (This card is every creature type.)As Morophon, the Boundless enters, choose a creature type.Spells of the chosen type you cast cost less to cast. This effect reduces only the amount of colored mana you pay.Other creatures you control of the chosen type get +1/+1.
Each player shuffles their hand and graveyard into their library, then draws seven cards.Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)
