Spells you cast cost {1} less to cast for each card with the same name as that spell in your graveyard.

You may have Sculpting Steel enter the battlefield as a copy of any artifact on the battlefield.

Shriekhorn enters the battlefield with three charge counters on it. {T}, Remove a charge counter from Shriekhorn: Target player mills two cards.

Imprint — When Spellweaver Helix enters the battlefield, you may exile two target sorcery cards from a single graveyard. Whenever a player casts a card, if it has the same name as one of the cards exiled with Spellweaver Helix, you may copy the other. If you do, you may cast the copy without paying its mana cost.

Flying Whenever Backdraft Hellkite attacks, each instant and sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost.

{R}, Sacrifice Bloodfire Dwarf: It deals 1 damage to each creature without flying.

This spell costs {3} less to cast if you have nine or more cards in your graveyard. Flying When Capricious Hellraiser enters the battlefield, exile three cards at random from your graveyard. Choose a noncreature, nonland card from among them and copy it. You may cast the copy without paying its mana cost.

Whenever you discard a card, you may exile that card from your graveyard. If you do, you may play that card this turn.

Whenever you cast a noncreature spell, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.) Delirium — As long as there are four or more card types among cards in your graveyard, Dragon's Rage Channeler gets +2/+2, has flying, and attacks each combat if able.

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

Sacrifice Dwarven Scorcher: Dwarven Scorcher deals 1 damage to target creature unless that creature's controller has Dwarven Scorcher deal 2 damage to them.

{R}, Sacrifice Enslaved Dwarf: Target black creature gets +1/+0 and gains first strike until end of turn.

Backup 1 (When this creature enters the battlefield, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.) Whenever this creature becomes tapped, you may discard a card. If you do, draw a card.

Flying When Knollspine Dragon enters the battlefield, you may discard your hand and draw cards equal to the damage dealt to target opponent this turn.

{R}, Sacrifice Liberated Dwarf: Target green creature gets +1/+0 and gains first strike until end of turn.

Trample Whenever Neheb, Dreadhorde Champion deals combat damage to a player or planeswalker, you may discard any number of cards. If you do, draw that many cards and add that much {R}. Until end of turn, you don't lose this mana as steps and phases end.

When Plundering Barbarian enters the battlefield, choose one — • Smash the Chest — Destroy target artifact. • Pry It Open — Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Whenever you cast a red spell, if Runaway Steam-Kin has fewer than three +1/+1 counters on it, put a +1/+1 counter on Runaway Steam-Kin. Remove three +1/+1 counters from Runaway Steam-Kin: Add {R}{R}{R}.

Whenever Spark Mage deals combat damage to a player, you may have Spark Mage deal 1 damage to target creature that player controls.

Changeling (This card is every creature type.)

Whenever you cast a noncreature spell, put an oil counter on Vindictive Flamestoker. {6}{R}, Sacrifice Vindictive Flamestoker: Discard your hand, then draw four cards. This ability costs {1} less to activate for each oil counter on Vindictive Flamestoker.

Flying, trample When Worldgorger Dragon enters the battlefield, exile all other permanents you control. When Worldgorger Dragon leaves the battlefield, return the exiled cards to the battlefield under their owners' control.

Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, you create two Treasure tokens." (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Stoke the Flames deals 4 damage to any target.

{T}: Add {R}. Barbarian Ring deals 1 damage to you. Threshold — {R}, {T}, Sacrifice Barbarian Ring: It deals 2 damage to any target. Activate only if seven or more cards are in your graveyard.

({T}: Add {R}.) Dwarven Mine enters the battlefield tapped unless you control three or more other Mountains. When Dwarven Mine enters the battlefield untapped, create a 1/1 red Dwarf creature token.

{T}: Add {C}. {2}, {T}: Each player draws a card, then discards a card.

{T}: Add {C}. ({C} represents colorless mana.) {T}, Tap an untapped creature you control: Add one mana of any color.

({T}: Add {R}.)

Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) Spinerock Knoll enters the battlefield tapped. {T}: Add {R}. {R}, {T}: You may play the exiled card without paying its mana cost if an opponent was dealt 7 or more damage this turn.

Each player draws three cards, then discards three cards at random.

As an additional cost to cast this spell, discard two cards. Draw three cards.

Discard your hand, then draw a card for each card you've discarded this turn.

Demonstrate (When you cast this spell, you may copy it. If you do, choose an opponent to also copy it.) Shuffle your library, then reveal cards from the top of it until you reveal a nonland card. Exile that card and put the rest on the bottom of your library in a random order. You may cast the exiled card without paying its mana cost.

Dragon's Approach deals 3 damage to each opponent. You may exile Dragon's Approach and four cards named Dragon's Approach from your graveyard. If you do, search your library for a Dragon creature card, put it onto the battlefield, then shuffle. A deck can have any number of cards named Dragon's Approach.

Draw two cards, then discard two cards. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

You may pay {2}{R}{R} rather than pay this spell's mana cost. If the {2}{R}{R} cost was paid, an opponent discards any number of cards, then draws that many cards. Search your library for up to three cards, put them into your hand, shuffle, then discard three cards at random.

Draw four cards, then discard three cards at random.

Shuffle your library, then exile the top four cards. You may cast any number of spells with mana value 5 or less from among them without paying their mana costs. Lands you control don't untap during your next untap step.

Exile the top three cards of your library. Until the end of your next turn, you may play those cards. Create three Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

Add {R} for each tapped land your opponents control.

Each instant and sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. Flashback {4}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Discard all the cards in your hand. Add {R} for each card discarded this way, then draw that many cards plus one. Will of the Planeswalkers — Starting with you, each player votes for planeswalk or chaos. If planeswalk gets more votes, planeswalk. If chaos gets more votes or the vote is tied, chaos ensues.

As an additional cost to cast this spell, discard a card. Draw two cards and create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

Roll two d12 and choose one result. Reckless Endeavor deals damage equal to that result to each creature. Then create a number of Treasure tokens equal to the other result.

Choose any number of target creatures, planeswalkers, and/or players. For each of them, exile the top card of your library, then Soulfire Eruption deals damage equal to that card's mana value to that permanent or player. You may play the exiled cards until the end of your next turn.