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.
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
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.
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.)
+1: Return up to one target land card from your graveyard to your hand.−1: Wrenn and Six deals 1 damage to any target.−7: You get an emblem with "Instant and sorcery cards in your graveyard have retrace." (You may cast instant and sorcery cards from your graveyard by discarding a land card in addition to paying their other costs.)
Exile target creature you control, then return it to the battlefield under its owner's control.Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)
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.
You can't spend mana to cast this spell.Convoke, delve (Each creature you tap while casting this spell pays for or one mana of that creature's color. Each card you exile from your graveyard pays for .)You may cast Hogaak, Arisen Necropolis from your graveyard.Trample
Exile target creature you don't control. For each creature exiled this way, its controller searches their library for a basic land card. Those players put those cards onto the battlefield tapped, then shuffle.Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
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.)
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.)
When Goblin Engineer enters, you may search your library for an artifact card, put it into your graveyard, then shuffle., , Sacrifice an artifact: Return target artifact card with mana value 3 or less from your graveyard to the battlefield.
When Seasoned Pyromancer enters, discard two cards, then draw two cards. For each nonland card discarded this way, create a 1/1 red Elemental creature token., Exile Seasoned Pyromancer from your graveyard: Create two 1/1 red Elemental creature tokens.
