Offspring {1}{R} (You may pay an additional {1}{R} as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.) Whenever another creature you control enters, this creature deals 1 damage to each opponent.

When this creature enters, other creatures you control gain "{T}: This creature deals 2 damage to any target" until end of turn. 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.)

Whenever one or more Goblins you control attack, create a 1/1 red Goblin creature token that's tapped and attacking. Whenever another creature you control enters, General Kreat deals 1 damage to each opponent.

Whenever a creature you control enters, this enchantment deals 1 damage to each opponent.

Tap an untapped creature you control: This enchantment deals 1 damage to target player or planeswalker.

Whenever another creature you control enters, this creature deals 1 damage to each opponent. Unearth {R} ({R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Indestructible As long as your devotion to red is less than five, Purphoros isn't a creature. Whenever another creature you control enters, Purphoros deals 2 damage to each opponent. {2}{R}: Creatures you control get +1/+0 until end of turn.

Flying Spells your opponents cast that target this creature cost an additional 3 life to cast. Whenever another creature you control enters, this creature deals damage equal to that creature's power to any target.

Whenever a creature you control enters, it deals damage equal to its power to any target.

When this creature enters, create two 1/1 red Goblin creature tokens.

Whenever a nontoken creature enters, if this artifact is untapped, that creature's controller creates a 1/1 colorless Myr artifact creature token.

When this creature enters, create two 1/1 red Goblin creature tokens.

When this creature enters, create a number of 1/1 red Goblin creature tokens equal to the number of opponents you have. {3}{R}, {T}: If a source you control would deal damage to an opponent this turn, it deals double that damage to that player instead.

When this creature enters, create a 1/1 red Goblin creature token.

{T}: Create X 1/1 red Goblin creature tokens, where X is the number of Goblins you control.

Echo {1}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.) When this creature enters or dies, create a 1/1 red Goblin creature token.

When this creature enters, create three 1/1 red Goblin creature tokens. {1}{R}, Sacrifice a Goblin: This creature deals 2 damage to any target.

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.) If a source you control would deal damage to a permanent or player, it deals triple that damage instead.

Whenever a nonartifact permanent you control enters, you may return another permanent you control that shares a permanent type with it to its owner's hand.

{2}{R}, {T}: Create a token that's a copy of target creature card in your graveyard, except it's an artifact in addition to its other types. It gains haste. Sacrifice it at the beginning of the next end step.

Haste {T}: Create a token that's a copy of target nonlegendary creature you control, except it has haste. Sacrifice it at the beginning of the next end step.

If an artifact or creature entering causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

{T}: Add one mana of any color in your commander's color identity.

{T}: Add {R}. As this artifact enters, you may have it become a copy of any creature on the battlefield until end of turn, except it has haste.

{T}: Add one mana of any color that a land an opponent controls could produce.

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 token: Add one mana of any color.")

{T}: Add {C}. {T}: Target nonland permanent becomes an artifact in addition to its other types until end of turn.

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

{T}: Add one mana of any color among legendary creatures and planeswalkers you control.

Red spells you cast cost {1} less to cast.

{T}: Add {C}{C}.

Search your library for a card, put that card into your hand, discard a card at random, then shuffle.

When this creature enters, you may search your library for a Goblin card, reveal that card, put it into your hand, then shuffle.

When this creature enters, search your library for any number of Goblin cards, reveal them, then shuffle and put those cards on top in any order.

{2}, {T}: Draw a card. Activate only if you control three or more lands with the same name.

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.)

Menace (This creature can't be blocked except by two or more creatures.) Whenever another creature you control with power 2 or less enters, you may discard a card. If you do, draw a card. Do this only once each turn.

{1}{R}, {T}, Sacrifice this creature: Each player discards their hand, then draws seven cards.

{T}, Sacrifice this artifact: Each player exiles all cards from their hand face down and draws seven cards. At the beginning of the next end step, each player discards their hand and returns to their hand each card they exiled this way.

Each player discards their hand, then draws seven cards. Miracle {1}{R} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)

Equipped creature gets +1/-1. Whenever equipped creature dies, draw two cards. Equip {1}

Whenever a creature you control attacks alone, exile the top card of your library. You may play that card this turn.

This artifact enters with a page counter on it. Whenever your commander enters or attacks, put a page counter on this artifact. {1}, {T}, Remove a page counter from this artifact: Draw a card.

Each player discards their hand, then draws seven cards.

Choose one — • Abrade deals 3 damage to target creature. • Destroy target artifact.

This spell costs {1} less to cast for each creature on the battlefield. Blasphemous Act deals 13 damage to each creature.

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.

For each player, choose target nonenchantment, nonland permanent that player controls. Those permanents' owners shuffle them into their libraries. Each player who controlled one of those permanents exiles cards from the top of their library until they exile a nonland card, then puts the rest on the bottom of their library in a random order. Each player may cast the nonland card they exiled without paying its mana cost.

Lightning Bolt deals 3 damage to any target.

Skred deals damage to target creature equal to the number of snow permanents you control.

Delirium — If a source you control would deal noncombat damage to a permanent or player while there are four or more card types among cards in your graveyard, it deals double that damage instead. When The Rollercrusher Ride enters, it deals X damage to each of up to X target creatures.

Counter target spell. Choose 1, 2, or 3 at random. Its controller mills that many cards, then exiles cards from the top of their library until they exile a nonland card with a different name than that spell. They may cast that card without paying its mana cost. Then they put the exiled cards on the bottom of their library in a random order.

You may sacrifice a nontoken red creature rather than pay this spell's mana cost. Copy target instant or sorcery spell. You may choose new targets for the copy.

Copy target instant or sorcery spell, except that the copy is red. You may choose new targets for the copy.

Choose one. If you control a commander as you cast this spell, you may choose both instead. • Add {R} for each card in target opponent's hand. • Exile the top three cards of your library. You may play them this turn.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

{T}: Add {C}. {2}, {T}, Sacrifice this land: Return target artifact card from your graveyard to your hand.

{T}: Add {C}. {2}, {T}, Sacrifice a token: Draw a card. {3}, {T}, Pay 1 life: Create a 1/1 blue Fish creature token. {4}, {T}: Create a Treasure token.

{T}, Pay 1 life, Sacrifice this land: Search your library for an Island or Mountain card, put it onto the battlefield, then shuffle.

{T}: Add {C}. {1}{S}, {T}: Look at the top card of your library. If that card is snow, you may reveal it and put it into your hand. ({S} can be paid with one mana from a snow source.)

({T}: Add {R}.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — This Saga gains "{T}: Add {C}." II — This Saga gains "{2}, {T}: Create a 0/0 colorless Construct artifact creature token with 'This token gets +1/+1 for each artifact you control.'" III — Search your library for an artifact card with mana cost {0} or {1}, put it onto the battlefield, then shuffle.

{T}: Add {C}. {3}, {T}, Pay life equal to the number of colors in your commanders' color identity: Draw a card.

When this creature enters, you may put a name sticker on it. Add {R} for each unique vowel on that sticker. (The vowels are A, E, I, O, U, and Y.)