{T}: Add {C}. Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

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

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

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

({T}: Add {R}.)

This land enters tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

{T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

This land enters tapped. {T}: Add {R}. {1}{R}, {T}, Sacrifice this land: Draw a card.

Cohort — {T}, Tap an untapped Ally you control: Discard a card. If you do, draw a card.

{1}, {T}: This creature deals 1 damage to each opponent. Whenever you cast a noncreature spell, untap this creature.

Goblins you control and Elementals you control have menace. (They can't be blocked except by two or more creatures.)

{R}: This creature gets +1/+0 until end of turn. Mountaincycling {2} ({2}, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)

Mountaincycling {2} ({2}, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.) Backup 2 (When this creature enters, put two +1/+1 counters on target creature. If that's another creature, it gains the following ability until end of turn.) Trample

Whenever you cast a noncreature spell, this creature deals 1 damage to each opponent.

Whenever another red creature you control enters, this creature gets +1/+0 until end of turn.

Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.) {1}{R}: Creatures you control named Genasi Enforcers get +1/+0 until end of turn.

Surge {1}{R} (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.) Menace (This creature can't be blocked except by two or more creatures.)

{T}, Sacrifice a Goblin: Goblin creatures get +2/+0 until end of turn.

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

Whenever this creature becomes tapped, it deals 1 damage to any target.

Whenever this creature attacks, you may goad target creature defending player controls. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

Sacrifice a Goblin: Target creature gets +1/+1 until end of turn.

Pack tactics — Whenever this creature attacks, if you attacked with creatures with total power 6 or greater this combat, this creature gains first strike until end of turn.

When this creature dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Encore {3}{R} ({3}{R}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Haste Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Haste This creature gets +1/+1 as long as you control another red creature.

Kinship — At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with this creature, you may reveal it. If you do, this creature gets +1/+1 until end of turn.

Haste Whenever you cast a noncreature spell, put an oil counter on this creature. {T}, Remove an oil counter from this creature: It deals 1 damage to each opponent.

Sacrifice a Goblin: Add {R}.

{R}, {T}: This creature deals damage equal to its power to any target.

Defender {T}: This creature deals 1 damage to each opponent. Whenever you cast an instant or sorcery spell, untap this creature.

Haste Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Target creature gains double strike until end of turn. (It deals both first-strike and regular combat damage.)

Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay {R}{R}. If the player does, they may copy this spell and may choose a new target for that copy.

Create two 1/1 red Goblin creature tokens.

Create two 1/1 red Goblin creature tokens. Storm (When you cast this spell, copy it for each spell cast before it this turn.)

As an additional cost to cast this spell, sacrifice a Goblin. Goblin Grenade deals 5 damage to any target.

Grapeshot deals 1 damage to any target. Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Target creature you control deals damage equal to its power to target player. Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

As an additional cost to cast this spell, sacrifice a creature. Add {R}{R}{R}.

Target creature gets +3/+0 and gains haste until end of turn. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Add {R}{R}, then add {R} for each card named Rite of Flame in each graveyard.

Enchant creature Enchanted creature gets +1/+0 for each Mountain you control and has first strike.

Target creature gets +4/+3 until end of turn.

Target attacking creature gets +X/+0 until end of turn. Draw a card at the beginning of the next turn's upkeep.

Target attacking creature gets +2/+2 until end of turn. Each attacking non-Human creature gains trample until end of turn.

Add {R} for each creature you control.

Target creature gets +3/+1 until end of turn. Exile the top card of your library. Until the end of your next turn, you may play that card.

Add {R} for each Goblin on the battlefield.

Target creature gets +3/+3 until end of turn.

Target creature gets +3/+1 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Target attacking creature gets +3/+3 until end of turn. If it's an artifact creature, it gains trample until end of turn.

Target creature gets +1/+0 and gains first strike until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

You may sacrifice a Mountain rather than pay this spell's mana cost. Target creature gets +X/+0 until end of turn, where X is the number of Mountains you control.

Draw a card. Until end of turn, target creature gains trample and gets +1/+0 for each card you've drawn this turn. (A creature with trample can deal excess combat damage to the player or planeswalker it's attacking.)

As an additional cost to cast this spell, sacrifice a creature. Fling deals damage equal to the sacrificed creature's power to any target.

Target blocking creature gets +3/+0 and gains first strike until end of turn.

Create two 1/1 red Goblin Wizard creature tokens with prowess. (Whenever you cast a noncreature spell, they get +1/+1 until end of turn.)

Target creature gets +3/+2 until end of turn.

Target creature gets +1/+0 until end of turn. When that creature dies this turn, create a 3/2 colorless Eldrazi Horror creature token.

Add {R}{R}{R}.

Target creature gets +2/+1 and gains trample until end of turn.

Target creature gets +2/+1 and gains haste until end of turn. Scry 1.

Add {R}{R}{R}{R}{R}.

Target creature gets +1/+0 and gains first strike until end of turn. Scry 1.

Target creature gets +2/+0 and gains first strike until end of turn. Create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

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 token: Add one mana of any color.")