At the beginning of combat on your turn, you may have target creature get +2/+0 until end of turn.

Whenever you attack, you may sacrifice another creature or an artifact. If you do, create a 4/1 black Skeleton creature token with menace that's tapped and attacking. (It can't be blocked except by two or more creatures.) Choose a Background (You can have a Background as a second commander.)

When this creature enters, add {R}.

Add {R} for each creature you control.

+1: Exile the top card of your library. You may cast that card. If you don't, Chandra deals 2 damage to each opponent. +1: Add {R}{R}. −3: Chandra deals 4 damage to target creature. −7: You get an emblem with "Whenever you cast a spell, this emblem deals 5 damage to any target."

As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery. Spells you cast of the chosen type cost {1} less to cast.

Add {R} for each attacking creature you control. Until end of turn, attacking creatures you control gain "{R}: This creature gets +1/+0 until end of turn."

Imprint — When this artifact enters, you may exile target land you control. Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.

Goblin spells you cast cost {1} less to cast. Goblins you control have haste.

Red creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, you may discard a card. If you do, draw a card.

As this artifact enters, choose a creature type. Creature spells you cast of the chosen type cost {1} less to cast. At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.

+2: Search your library for a basic Mountain card, reveal it, put it into your hand, then shuffle. −3: Koth deals damage to target creature equal to the number of Mountains you control. −7: You get an emblem with "Whenever a Mountain you control enters, this emblem deals 4 damage to any target."

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

Suspend 3—{0} (Rather than cast this card from your hand, pay {0} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.) {T}: Add one mana of any color.

Whenever Ragavan deals combat damage to a player, create a Treasure token and exile the top card of that player's library. Until end of turn, you may cast that card. Dash {1}{R} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

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

{1}{R}: Goblins you control get +1/+0 and gain haste until end of turn. Pack tactics — Whenever this creature attacks, if you attacked with creatures with total power 6 or greater this combat, create a 1/1 red Goblin creature token that's tapped and attacking.

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.

Whenever Krenko attacks, put a +1/+1 counter on it, then create a number of 1/1 red Goblin creature tokens equal to Krenko's power.

Haste Whenever Squee attacks, create a 1/1 red Goblin creature token that's tapped and attacking. You may cast this card from your graveyard by paying {3}{R} and exiling four other cards from your graveyard rather than paying its mana cost.

Landfall — Whenever a land you control enters, create a colorless Equipment artifact token named Rock with "Equipped creature has '{1}, {T}, Sacrifice Rock: This creature deals 2 damage to any target'" and equip {1}. Partner (You can have two commanders if both have partner.)

As this creature enters, choose a creature type. This creature is the chosen type in addition to its other types. Other creatures you control of the chosen type get +1/+1.

Red creatures you control have first strike.

Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

Attacking non-Human creatures you control get +1/+0 and have trample.

Attacking creatures you control get +1/+0.

As Hall of Triumph enters, choose a color. Creatures you control of the chosen color get +1/+1.

Other red creatures you control get +1/+1. {R}, {T}: Another target red creature you control gains haste until end of turn. (It can attack and {T} this turn.)

Enchant player At the beginning of enchanted player's draw step, that player draws two additional cards. At the beginning of enchanted player's end step, that player discards their hand.

Suspend 3—{R}{R} Shuffle all permanents you own into your library, then reveal that many cards from the top of your library. Put all non-Aura permanent cards revealed this way onto the battlefield, then do the same for Aura cards, then put the rest on the bottom of your library in a random order.

Haste (This creature can attack and {T} as soon as it comes under your control.) When this creature enters, reveal the top four cards of your library. Put all Goblin cards revealed this way into your hand and the rest on the bottom of your library in any order.

When Muxus enters, reveal the top six cards of your library. Put all Goblin creature cards with mana value 5 or less from among them onto the battlefield and the rest on the bottom of your library in a random order. Whenever Muxus attacks, it gets +1/+1 until end of turn for each other Goblin you control.

First strike, haste {2}{R}, Sacrifice this creature: Draw a card and create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

If a creature you control would deal damage to a permanent or player, it deals double that damage instead.

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

Flame Spill deals 4 damage to target creature. Excess damage is dealt to that creature's controller instead.

At the beginning of your upkeep, create a colorless artifact token named Land Mine with "{R}, Sacrifice this token: This token deals 2 damage to target attacking creature without flying." Then flip a coin. If you lose the flip, this creature deals 2 damage to itself.

Other Goblins you control get +1/+1. {R}, {T}: This creature deals damage equal to the number of Goblins that entered the battlefield under your control this turn to any target.

Whenever another Goblin you control becomes blocked, sacrifice it. If you do, it deals 4 damage to each creature blocking it. Sacrifice two Mountains: Create two 1/1 red Goblin creature tokens.

{2}, {T}: Copy target activated or triggered ability you control. You may choose new targets for the copy. {3}, {T}: Copy target instant or sorcery spell you control. You may choose new targets for the copy. {4}, {T}: Copy target permanent spell you control. (The copy becomes a token.)

This land enters tapped unless you control a Mountain. {T}: Add {R}. {R}, {T}, Exert this land: Add {R}{R}. If that mana is spent on a creature spell, it gains haste until end of turn. (An exerted permanent won't untap during your next untap step.)

This land enters tapped unless you control a Mountain. {T}: Add {R}. {1}{R}{R}, {T}: Creatures you control get +1/+0 until end of turn.

If you control two or more other lands, this land enters tapped. {T}: Add {R}. {3}{R}: Until end of turn, this land becomes a 3/2 red Goblin creature with "Whenever this creature attacks, create a 1/1 red Goblin creature token that's tapped and attacking." It's still a land.

This land enters tapped. When this land enters, sacrifice it unless you return an untapped Mountain you control to its owner's hand. {T}: Add {C}{R}.

This land enters tapped. {T}: Add {R}. {1}{R}: This land becomes a 2/1 red Warrior creature with first strike until end of turn. It's still a land. (It deals combat damage before creatures without first strike.)

{T}: Add {C}. {1}{R}, {T}: Target Goblin creature gets +2/+0 until end of turn.

{T}: Add {C}. {1}{R}, {T}: Put a pressure counter on this land. {1}{R}, {T}, Remove two pressure counters from this land and sacrifice it: Create a 4/4 red Hellion creature token with haste. (It can attack and {T} as soon as it comes under your control.)

({T}: Add {R}.)

This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

{T}: Add {R}. {R}, {T}: Target legendary creature gains first strike until end of turn.

{T}: Add {R}. Channel — {3}{R}, Discard this card: Create two 1/1 colorless Spirit creature tokens. They gain haste until end of turn. This ability costs {1} less to activate for each legendary creature you control.

Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) This land enters 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.

{T}: Add {C}. {2}, {T}: This land becomes a copy of target land, except it has this ability.

This land enters tapped. Whenever a Mountain you control enters, if you control at least five other Mountains, you may have this land deal 3 damage to any target. {T}: Add {R}.

Haste Whenever Ardoz or another creature you control enters, that creature gets +2/+0 until end of turn. {3}{R}: Create a 1/1 red Goblin creature token with haste. Activate only as a sorcery.

Target creature gets +X/+0 until end of turn.

Creatures you control get +2/+0 until end of turn.