March of the Machine

Breach the Multiverse | Sorcery | | Each player mills ten cards. For each player, choose a creature or planeswalker card in that player's graveyard. Put those cards onto the battlefield under your control. Then each creature you control becomes a Phyrexian in addition to its other types. | Liiga Smilshkalne

Gloomfang Mauler | Creature | Nightmare | Swampcycling {2} ({2}, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.) Backup 2 (When this creature enters the battlefield, put two +1/+1 counters on target creature. If that's another creature, it gains the following ability until end of turn.) Menace | Denis Zhbankov

Hoarding Broodlord | Creature | Dragon | Convoke Flying When Hoarding Broodlord enters the battlefield, search your library for a card, exile it face down, then shuffle. For as long as that card remains exiled, you may play it. Spells you cast from exile have convoke. | Filip Burburan

City on Fire | Enchantment | | Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) If a source you control would deal damage to a permanent or player, it deals triple that damage instead. | Jake Murray

Etali, Primal Conqueror // Etali, Primal Sickness | Legendary Creature // Legendary Creature | Elder Dinosaur // Phyrexian Elder Dinosaur | Trample When Etali, Primal Conqueror enters, each player exiles cards from the top of their library until they exile a nonland card. You may cast any number of spells from among the nonland cards exiled this way without paying their mana costs. {9}{G/P}: Transform Etali. Activate only as a sorcery. // Trample, indestructible Whenever Etali, Primal Sickness deals combat damage to a player, they get that many poison counters. (A player with ten or more poison counters loses the game.) | Ryan Pancoast

Shivan Branch-Burner | Creature | Dragon | Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Flying, haste | Aaron Miller

Ancient Imperiosaur | Creature | Dinosaur | Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Trample, ward {2} Ancient Imperiosaur enters the battlefield with two +1/+1 counters on it for each creature that convoked it. | Piotr Foksowicz

Copper Host Crusher | Creature | Phyrexian Bear Rhino | Trample Hexproof (This creature can't be the target of spells or abilities your opponents control.) | Nicholas Gregory

Ghalta and Mavren | Legendary Creature | Dinosaur Vampire | Trample Whenever you attack, choose one — • Create a tapped and attacking X/X green Dinosaur creature token with trample, where X is the greatest power among other attacking creatures. • Create X 1/1 white Vampire creature tokens with lifelink, where X is the number of other attacking creatures. | Zezhou Chen