Modern Horizons 3 Commander

Siege-Gang Lieutenant

Siege-Gang Lieutenant {3}{R}

Creature - Goblin
Lieutenant — At the beginning of combat on your turn, if you control your commander, create two 1/1 red Goblin creature tokens. Those tokens gain haste until end of turn.
{2}, Sacrifice a Goblin: Siege-Gang Lieutenant deals 1 damage to any target.
His crew proudly maintains an accident rate of 100% per day.
2/2
Tempt with Mayhem

Tempt with Mayhem {1}{R}{R}

Instant
Tempting offer — Choose target instant or sorcery spell. Each opponent may copy that spell and may choose new targets for the copy they control. You copy that spell once plus an additional time for each opponent who copied the spell this way. You may choose new targets for the copies you control.
Desert Warfare

Desert Warfare {3}{G}

Enchantment
Whenever you sacrifice a Desert and whenever a Desert card is put into your graveyard from your hand or library, put that card onto the battlefield under your control at the beginning of your next end step.
At the beginning of combat on your turn, if you control five or more Deserts, create that many 1/1 red, green, and white Sand Warrior creature tokens. They gain haste.
Polygoyf

Polygoyf {2}{G}

Creature - Lhurgoyf
Trample, myriad
Polygoyf's power is equal to the number of card types among cards in all graveyards and its toughness is equal to that number plus 1.
*/1+*
Rampant Frogantua

Rampant Frogantua {2}{G}

Creature - Frog
Trample
Rampant Frogantua gets +10/+10 for each player who has lost the game.
Whenever Rampant Frogantua deals combat damage to a player, you may mill that many cards. Put any number of land cards from among them onto the battlefield tapped.
3/3
Sage of the Maze

Sage of the Maze {2}{G}

Creature - Elf Wizard
{T}: Add two mana in any combination of colors.
{T}: Until end of turn, target land you control becomes an X/X Citizen creature with haste in addition to its other types, where X is twice the number of Gates you control. Activate only as a sorcery.
Tap an untapped Gate you control: Untap Sage of the Maze.
1/3
Tarmogoyf Nest

Tarmogoyf Nest {2}{G}

Kindred Enchantment - Lhurgoyf Aura
Enchant land
Enchanted land has "{1}{G}, {T}: Create a Tarmogoyf token."
Aggressive Biomancy

Aggressive Biomancy {X}{X}{G}{U}

Sorcery
Create X tokens that are copies of target creature you control, except they have "When this creature enters, it fights up to one target creature you don't control."
"I am an esteemed scientist. Base violence is beneath me. Luckily, it's not beneath my subjects."
—Gulistan, Simic biomancer
Bloodbraid Challenger

Bloodbraid Challenger {3}{R}{G}

Creature - Elf Berserker
Cascade
Haste
Escape — {3}{R}{G}, Exile three other cards from your graveyard.
Hasal knew hunting in the Rip would be dangerous. He didn't know it would be so much fun.
4/3
Broodmate Tyrant

Broodmate Tyrant {4}{B}{R}{G}

Creature - Dragon
Flying
When Broodmate Tyrant enters, create a 5/5 red Dragon creature token with flying.
Encore {5}{B}{R}{G}
Karrthus was not the first Tyrant of Jund, nor will he be the last.
5/5
Exterminator Magmarch

Exterminator Magmarch {2}{B}{R}

Artifact Creature - Phyrexian Construct
Whenever you cast an instant or sorcery spell that targets only a single nonland permanent an opponent controls, if another opponent controls one or more nonland permanents that spell could target, choose one of those permanents. Copy that spell. The copy targets the chosen permanent.
{1}{B}: Regenerate Exterminator Magmarch.
5/3
Gluttonous Hellkite

Gluttonous Hellkite {X}{X}{B}{R}{G}

Creature - Dragon
When you cast this spell, each player sacrifices X creatures. Gluttonous Hellkite enters with two +1/+1 counters on it for each creature sacrificed this way.
Flying, trample
Its maw opens, and entire species disappear.
3/3
Infested Thrinax

Infested Thrinax {3}{B}{G}

Creature - Lizard
Flash
When Infested Thrinax enters, until end of turn, whenever a nontoken creature you control dies, create a number of 1/1 green Saproling creature tokens equal to that creature's power.
Jund doesn't have a food chain so much as a mass feeding frenzy.
4/4
Sphinx of the Revelation

Sphinx of the Revelation {3}{W}{U}

Artifact Creature - Sphinx
Flying, lifelink
Whenever you gain life, you get that many {E}.
{W}{U}{U}, {T}, Pay X {E}: Draw X cards.
Crafted from absolute law. Enforcer of absolute order.
4/5
Conversion Apparatus

Conversion Apparatus {3}

Artifact
{T}: Add {C}.
{3}, {T}: You get {E}{E}{E}.
{T}, Pay {E}{E}{E}: Add three mana in any combination of colors.
"The most useful objects really ought to be the most beautiful."
—Saheeli
Stone Idol Generator

Stone Idol Generator {5}

Artifact
Whenever a creature you control attacks, you get {E}.
{T}, Pay six {E}: Create a 6/12 colorless Construct artifact creature token with trample. Activate only as a sorcery.
"Like my people's ambitions, it is both awe-inspiring and unfinished."
—Nahiri
Horizon of Progress

Horizon of Progress

Land
{T}, Pay 1 life: Add one mana of any type that a land you control could produce.
{3}, {T}: You may put a land card from your hand onto the battlefield tapped.
{1}, {T}, Sacrifice Horizon of Progress: Draw a card.
Lazotep Quarry

Lazotep Quarry

Land - Desert
{T}: Add {C}.
{T}, Sacrifice a creature: Add one mana of any color.
{X}{2}, {T}, Sacrifice a Desert: Exile target creature card with mana value X from your graveyard. Create a token that's a copy of it, except it's a 4/4 black Zombie. Activate only as a sorcery.
Planar Nexus

Planar Nexus

Land
Planar Nexus is every nonbasic land type.
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
The violence of the Conflux gave way to rebirth.
Sunken Palace

Sunken Palace

Land - Cave
Sunken Palace enters tapped.
{T}: Add {U}.
{1}{U}, {T}, Exile seven cards from your graveyard: Add {U}. When you spend this mana to cast a spell or activate an ability, copy that spell or ability. You may choose new targets for the copy.
Talon Gates of Madara

Talon Gates of Madara

Land - Gate
When Talon Gates of Madara enters, up to one target creature phases out.
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
{4}: Put Talon Gates of Madara from your hand onto the battlefield.
Trenchpost

Trenchpost

Land - Locus
{T}: Add {C}.
{3}, {T}: Target player mills a card for each Locus you control.
What once watched from among the clouds now lies buried and forgotten beneath an artificial sky.
Azlask, the Swelling Scourge

Azlask, the Swelling Scourge {3}

Legendary Creature - Eldrazi
Whenever Azlask, the Swelling Scourge or another colorless creature you control dies, you get an experience counter.
{W}{U}{B}{R}{G}: Creatures you control get +X/+X until end of turn, where X is the number of experience counters you have. Scions and Spawns you control gain indestructible and annihilator 1 until end of turn.
2/2
Cayth, Famed Mechanist

Cayth, Famed Mechanist {1}{U}{R}{W}

Legendary Creature - Dwarf Artificer
Fabricate 1
Other nontoken creatures you control have fabricate 1.
{2}, {T}: Choose one —
• Populate.
• Proliferate.
3/3
Coram, the Undertaker

Coram, the Undertaker {1}{B}{R}{G}

Legendary Creature - Human Warrior
Coram, the Undertaker gets +X/+0, where X is the greatest power among creature cards in all graveyards.
Whenever Coram attacks, each player mills a card.
During each of your turns, you may play a land and cast a spell from among cards in graveyards that were put there from libraries this turn.
0/5