Haste

Whenever Akki Lavarunner deals damage to an opponent, flip it.

Protection from red

If a red source would deal damage to a player, it deals that much damage plus 1 to that player instead.

{T}: Add {C}.

{1}, {T}: Until end of turn, creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud.

Beacon of Destruction deals 5 damage to any target. Shuffle Beacon of Destruction into its owner's library.

When Beetleback Chief enters the battlefield, create two 1/1 red Goblin creature tokens.

Whenever a player taps a nonbasic land for mana, Burning Earth deals 1 damage to that player.

As Caged Sun enters the battlefield, choose a color.

Creatures you control of the chosen color get +1/+1.

Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color.

Sacrifice Catalyst Elemental: Add {R}{R}.

Chain Reaction deals X damage to each creature, where X is the number of creatures on the battlefield.

You may reveal this card from your opening hand. If you do, at the beginning of the first upkeep, create a 1/1 red Phyrexian Goblin creature token with haste.

When Chancellor of the Forge enters the battlefield, create X 1/1 red Phyrexian Goblin creature tokens with haste, where X is the number of creatures you control.

+1: Create two 3/1 red Elemental creature tokens with haste. Exile them at the beginning of the next end step.

0: Discard all the cards in your hand, then draw that many cards plus one.

-X: Chandra, Flamecaller deals X damage to each creature.

+1: Exile the top card of your library. You may cast that card. If you don't, Chandra, Torch of Defiance deals 2 damage to each opponent.

+1: Add {R}{R}.

-3: Chandra, Torch of Defiance 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."

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

Sacrifice Commander's Sphere: Draw a card.

{T}: Add {C}.

{3}, {T}, Sacrifice Cradle of the Accursed: Create a 2/2 black Zombie creature token. Activate only as a sorcery.

Destroy any number of target creatures. For each creature destroyed this way, its controller creates a 4/4 red Dragon creature token with flying.

Flash

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

Undaunted (This spell costs {1} less to cast for each opponent.)

Exile two target creatures. For each of those creatures, its controller reveals cards from the top of their library until they reveal a creature card, puts that card onto the battlefield, then shuffles the rest into their library.

Defender

When Dragon Egg dies, create a 2/2 red Dragon creature token with flying and "{R}: This creature gets +1/+0 until end of turn."

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

{3}, {T}, Sacrifice Dreamstone Hedron: Draw three cards.

Flash

When Dualcaster Mage enters the battlefield, copy target instant or sorcery spell. You may choose new targets for the copy.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

If another red source you control would deal damage to a permanent or player, it deals that much damage plus 1 to that permanent or player instead.

Epochrasite enters the battlefield with three +1/+1 counters on it if you didn't cast it from your hand.

When Epochrasite dies, exile it with three time counters on it and it gains suspend. (At the beginning of your upkeep, remove a time counter. When the last is removed, cast this card without paying its mana cost. It has haste.)

{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.

Flying

Whenever a source an opponent controls deals damage to you or a permanent you control, you may have Flameblade Angel deal 1 damage to that source's controller.

As Flamekin Village enters the battlefield, you may reveal an Elemental card from your hand. If you don't, Flamekin Village enters the battlefield tapped.

{T}: Add {R}.

{R}, {T}: Target creature gains haste until end of turn.

{T}: Add {C}.

{5}, {T}, Sacrifice Foundry of the Consuls: Create two 1/1 colorless Thopter artifact creature tokens with flying.

First strike

When Goblin Chainwhirler enters the battlefield, it deals 1 damage to each opponent and each creature and planeswalker they control.

{R}, Return Grinning Ignus to its owner's hand: Add {C}{C}{R}. Activate only as a sorcery.

Whenever an opponent activates an ability of an artifact, creature, or land on the battlefield, if it isn't a mana ability, Harsh Mentor deals 2 damage to that player.

Whenever a creature enters the battlefield under your control, Impact Tremors deals 1 damage to each opponent.

First strike, haste

{T}: Jeska, Warrior Adept deals 1 damage to any target.

Whenever a creature an opponent controls attacks, if you're the defending player, create a 3/3 red Ogre creature token unless that creature's controller pays {3}.

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.

+1: Untap target Mountain. It becomes a 4/4 red Elemental creature until end of turn. It's still a land.

-2: Add {R} for each Mountain you control.

-5: You get an emblem with "Mountains you control have '{T}: This land deals 1 damage to any target.'"

Lightning Bolt deals 3 damage to any target.

{T}: Add {C}.

First strike (This creature deals combat damage before creatures without first strike.)

Whenever an opponent casts a white or blue instant or sorcery spell, Mindsparker deals 2 damage to that player.

({T}: Add {R}.)

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When Myr Battlesphere enters the battlefield, create four 1/1 colorless Myr artifact creature tokens.

Whenever Myr Battlesphere attacks, you may tap X untapped Myr you control. If you do, Myr Battlesphere gets +X/+0 until end of turn and deals X damage to the player or planeswalker it's attacking.

Nevinyrral's Disk enters the battlefield tapped.

{1}, {T}: Destroy all artifacts, creatures, and enchantments.

When a player casts a spell or a creature attacks, exile Norin the Wary. Return it to the battlefield under its owner's control at the beginning of the next end step.

Whenever another creature enters the battlefield under your control, that creature gets +2/+0 and gains haste until end of turn. (It can attack and {T} this turn.)

{R}, {T}: Look at the top eight cards of your library. Exile four of them at random, then put the rest on top of your library in any order.

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

Flying

When Pilgrim's Eye enters the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Indestructible

As long as your devotion to red is less than five, Purphoros isn't a creature.

Whenever another creature enters the battlefield under your control, Purphoros deals 2 damage to each opponent.

{2}{R}: Creatures you control get +1/+0 until end of turn.

Haste

{R}, {T}: Create a 3/1 red Elemental creature token with haste.

Flying

When Rekindling Phoenix dies, create a 0/1 red Elemental creature token with "At the beginning of your upkeep, sacrifice this creature and return target card named Rekindling Phoenix from your graveyard to the battlefield. It gains haste until end of turn."

Creatures named Lightning Rager can't attack you or planeswalkers you control.

At the beginning of each player's upkeep, that player creates a 5/1 red Elemental creature token named Lightning Rager. It has trample, haste, and "At the beginning of the end step, sacrifice this creature."

Flying, haste

+1: Until end of turn, Sarkhan, the Dragonspeaker becomes a legendary 4/4 red Dragon creature with flying, indestructible, and haste. (He doesn't lose loyalty while he's not a planeswalker.)

-3: Sarkhan, the Dragonspeaker deals 4 damage to target creature.

-6: You get an emblem with "At the beginning of your draw step, draw two additional cards" and "At the beginning of your end step, discard your hand."

Exile target permanent.

Enchant creature

Enchanted creature has haste and "At the beginning of your upkeep, destroy this creature. Reveal cards from the top of your library until you reveal a creature card. Put that card onto the battlefield and attach Shifting Shadow to it, then put all other cards revealed this way on the bottom of your library in a random order."

When Siege-Gang Commander enters the battlefield, create three 1/1 red Goblin creature tokens.

{1}{R}, Sacrifice a Goblin: Siege-Gang Commander deals 2 damage to any target.

Menace

At the beginning of your upkeep, reveal the top card of your library. Any opponent may have you put that card into your graveyard. If a player does, Sin Prodder deals damage to that player equal to that card's mana value. Otherwise, put that card into your hand.

Equipped creature gets +1/-1.

Whenever equipped creature dies, draw two cards.

Equip {1}

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

When Solemn Simulacrum enters the battlefield, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

When Solemn Simulacrum dies, you may draw a card.

Enchant creature

Enchanted creature has "{T}: Create a token that's a copy of this creature, except it has haste. Exile that token at the beginning of the next end step."

At the beginning of each player's upkeep, Sulfuric Vortex deals 2 damage to that player.

If a player would gain life, that player gains no life instead.

Changeling (This card is every creature type.)

Whenever an opponent casts a spell, you may put a +1/+1 counter on Taurean Mauler.

{1}, {T}, Discard a card: You gain 4 life.

{1}, {T}, Pay 1 life: Create a 0/1 white Goat creature token.

{1}, {T}, Sacrifice a creature: Return target artifact card from your graveyard to your hand.

{1}, {T}, Sacrifice an artifact: Draw a card.

Haste

When Tuktuk the Explorer dies, create Tuktuk the Returned, a legendary 5/5 colorless Goblin Golem artifact creature token.

Flying, haste

Lieutenant -- As long as you control your commander, Tyrant's Familiar gets +2/+2 and has "Whenever Tyrant's Familiar attacks, it deals 7 damage to target creature defending player controls."

Valakut, the Molten Pinnacle enters the battlefield tapped.

Whenever a Mountain enters the battlefield under your control, if you control at least five other Mountains, you may have Valakut, the Molten Pinnacle deal 3 damage to any target.

{T}: Add {R}.

When War Elemental enters the battlefield, sacrifice it unless an opponent was dealt damage this turn.

Whenever an opponent is dealt damage, put that many +1/+1 counters on War Elemental.

Haste

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

Players can't gain life.

At the beginning of your upkeep, Witch Hunt deals 4 damage to you.

At the beginning of your end step, target opponent chosen at random gains control of Witch Hunt.