March of the Machine Jumpstart Booster has variants:
Explore this pack in Sealed.

Sheets

Sheet brood_1 (fixed content without randomization)

At count 5x
Plains
At count 1x
Alabaster Host Intercessor
Alabaster Host Sanctifier
Angelic Intervention
Cut Short
Essence of Orthodoxy
Infected Defector
Norn's Inquisitor
Phyrexian Pegasus
Plains
Seedpod Caretaker
Sunder the Gateway
Tiller of Flesh

Sheet brood_1_foils (fixed content without randomization)

At count 2x
Plains

Sheet rare_mythic_white

At rate 2/15 (13.33%)
Boon-Bringer Valkyrie
Dusk Legion Duelist
Guardian of Ghirapur
Knight-Errant of Eos
Progenitor Exarch
Sunfall
At rate 1/15 (6.67%)
Archangel Elspeth
Monastery Mentor
At rate 1/30 (3.33%)
Realmbreaker, the Invasion Tree
Sword of Once and Future

Sheet brood_2 (fixed content without randomization)

At count 5x
Plains
At count 1x
Aerial Boost
Alabaster Host Intercessor
Alabaster Host Sanctifier
Essence of Orthodoxy
Infected Defector
Inspired Charge
Norn's Inquisitor
Phyrexian Pegasus
Plains
Seal from Existence
Seedpod Caretaker
Tiller of Flesh

Sheet brood_2_foils (fixed content without randomization)

At count 2x
Plains

Sheet buff_1 (fixed content without randomization)

At count 5x
Forest
At count 1x
Arachnoid Adaptation
Converter Beast
Cosmic Hunger
Fairgrounds Trumpeter
Fertilid's Favor
Forest
Kami of Whispered Hopes
Placid Rottentail
Ruins Recluse
Surrak and Goreclaw
Timberland Ancient
Wary Thespian

Sheet buff_1_foils (fixed content without randomization)

At count 2x
Forest

Sheet rare_mythic_green

At rate 1/7 (14.29%)
Ancient Imperiosaur
Deeproot Wayfinder
Doomskar Warrior
Glistening Dawn
Ozolith, the Shattered Spire
Tribute to the World Tree
At rate 1/14 (7.14%)
Wrenn and Realmbreaker
At rate 1/28 (3.57%)
Realmbreaker, the Invasion Tree
Sword of Once and Future

Sheet buff_2 (fixed content without randomization)

At count 5x
Forest
At count 1x
Arachnoid Adaptation
Blighted Burgeoning
Converter Beast
Fairgrounds Trumpeter
Forest
Kami of Whispered Hopes
Placid Rottentail
Ruins Recluse
Surrak and Goreclaw
Tandem Takedown
Timberland Ancient
Wary Thespian

Sheet buff_2_foils (fixed content without randomization)

At count 2x
Forest

Sheet expendable_1 (fixed content without randomization)

At count 5x
Swamp
At count 1x
Deadly Derision
Dreg Recycler
Etched Familiar
Final Flourish
Gift of Compleation
Ichor Shade
Injector Crocodile
Scorn-Blade Berserker
Seer of Stolen Sight
Swamp
Terror of Towashi
Unseal the Necropolis

Sheet expendable_1_foils (fixed content without randomization)

At count 2x
Swamp

Sheet rare_mythic_black

At rate 2/13 (15.38%)
Archpriest of Shadows
Bloated Processor
Breach the Multiverse
Grafted Butcher
Hoarding Broodlord
Pile On
At rate 1/26 (3.85%)
Realmbreaker, the Invasion Tree
Sword of Once and Future

Sheet expendable_2 (fixed content without randomization)

At count 5x
Swamp
At count 1x
Compleated Huntmaster
Corrupted Conviction
Deadly Derision
Dreg Recycler
Etched Familiar
Failed Conversion
Gift of Compleation
Injector Crocodile
Scorn-Blade Berserker
Seer of Stolen Sight
Swamp
Terror of Towashi

Sheet expendable_2_foils (fixed content without randomization)

At count 2x
Swamp

Sheet overachiever_1 (fixed content without randomization)

At count 5x
Island
At count 1x
Ephara's Dispersal
Expedition Lookout
Interdisciplinary Mascot
Island
Meeting of Minds
Oracle of Tragedy
Preening Champion
Referee Squad
Temporal Cleansing
Thunderhead Squadron
Tidal Terror
Zephyr Winder

Sheet overachiever_1_foils (fixed content without randomization)

At count 2x
Island

Sheet rare_mythic_blue

At rate 2/13 (15.38%)
Chrome Host Seedshark
Complete the Circuit
Faerie Mastermind
See Double
Transcendent Message
Zephyr Singer
At rate 1/26 (3.85%)
Realmbreaker, the Invasion Tree
Sword of Once and Future

Sheet overachiever_2 (fixed content without randomization)

At count 5x
Island
At count 1x
Astral Wingspan
Ephara's Dispersal
Expedition Lookout
Interdisciplinary Mascot
Island
Oracle of Tragedy
Referee Squad
Thunderhead Squadron
Tidal Terror
Wicked Slumber
Xerex Strobe-Knight
Zephyr Winder

Sheet overachiever_2_foils (fixed content without randomization)

At count 2x
Island

Sheet reinforcement_1 (fixed content without randomization)

At count 5x
Mountain
At count 1x
Axgard Artisan
Coming In Hot
Cragsmasher Yeti
Fearless Skald
Hangar Scrounger
Karsus Depthguard
Mountain
Orthion, Hero of Lavabrink
Ral's Reinforcements
Redcap Heelslasher
Stoke the Flames
Volcanic Spite

Sheet reinforcement_1_foils (fixed content without randomization)

At count 2x
Mountain

Sheet rare_mythic_red

At rate 1/7 (14.29%)
Bloodfeather Phoenix
City on Fire
Into the Fire
Nahiri's Warcrafting
Rampaging Raptor
Voldaren Thrillseeker
At rate 1/14 (7.14%)
Chandra, Hope's Beacon
At rate 1/28 (3.57%)
Realmbreaker, the Invasion Tree
Sword of Once and Future

Sheet reinforcement_2 (fixed content without randomization)

At count 5x
Mountain
At count 1x
Axgard Artisan
Cragsmasher Yeti
Fearless Skald
Hangar Scrounger
Karsus Depthguard
Mirran Banesplitter
Mountain
Orthion, Hero of Lavabrink
Redcap Heelslasher
Shatter the Source
Trailblazing Historian
Volcanic Spite

Sheet reinforcement_2_foils (fixed content without randomization)

At count 2x
Mountain