For each creature your opponents control, create a 4/4 green Phyrexian Beast creature token. Each of those tokens fights a different one of those creatures.
Artista: Svetlin Velinov
Niv-Mizzet, Parun
This spell can’t be countered.
Flying
Whenever you draw a card, Niv-Mizzet, Parun deals 1 damage to any target.
Whenever a player casts an instant or sorcery spell, you draw a card.
Keiga, the Tide Star
Flying
When Keiga, the Tide Star dies, gain control of target creature.
Vengeful Ancestor
Flying
Whenever Vengeful Ancestor enters or attacks, goad target creature. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)
Whenever a goaded creature attacks, it deals 1 damage to its controller.
Izzet Chemister
Haste
,
: Exile target instant or sorcery card from your graveyard.
,
, Sacrifice Izzet Chemister: Cast any number of cards exiled with Izzet Chemister without paying their mana costs.
Brash Taunter
Indestructible
Whenever Brash Taunter is dealt damage, it deals that much damage to target opponent.
,
: Brash Taunter fights another target creature.
Parnesse, the Subtle Brush
Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless that player pays 4 life.
Whenever you copy a spell, up to one target opponent may also copy that spell. They may choose new targets for that copy.
Riveteers Ascendancy
Whenever you sacrifice a creature, you may return target creature card with lesser mana value from your graveyard to the battlefield tapped. Do this only once each turn.
Parnesse, the Subtle Brush
Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless that player pays 4 life.
Whenever you copy a spell, up to one target opponent may also copy that spell. They may choose new targets for that copy.
Squee, the Immortal
You may cast Squee, the Immortal from your graveyard or from exile.
Preordain
Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)
Roalesk, Apex Hybrid
Flying, trample
When Roalesk, Apex Hybrid enters, put two +1/+1 counters on another target creature you control.
When Roalesk dies, proliferate, then proliferate again. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)
Industrial Advancement
At the beginning of your end step, you may sacrifice a creature. If you do, look at the top X cards of your library, where X is that creature’s mana value. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in a random order.
Riveteers Ascendancy
Whenever you sacrifice a creature, you may return target creature card with lesser mana value from your graveyard to the battlefield tapped. Do this only once each turn.
Swiftfoot Boots
Equipped creature has hexproof and haste. (It can’t be the target of spells or abilities your opponents control. It can attack and no matter when it came under your control.)
Equip (
: Attach to target creature you control. Equip only as a sorcery.)
Industrial Advancement
At the beginning of your end step, you may sacrifice a creature. If you do, look at the top X cards of your library, where X is that creature’s mana value. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in a random order.
Industrial Advancement
At the beginning of your end step, you may sacrifice a creature. If you do, look at the top X cards of your library, where X is that creature’s mana value. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in a random order.
Riveteers Ascendancy
Whenever you sacrifice a creature, you may return target creature card with lesser mana value from your graveyard to the battlefield tapped. Do this only once each turn.
Talrand’s Invocation
Create two 2/2 blue Drake creature tokens with flying.
Rite of the Raging Storm
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.”
A-Riveteers Initiate
: Riveteers Initiate gains deathtouch until end of turn.
Rooftop Nuisance
Casualty 1 (As you cast this spell, you may sacrifice a creature with power 1 or greater. When you do, copy this spell and you may choose a new target for the copy.)
Tap target creature. It doesn’t untap during its controller’s next untap step.
Draw a card.
Goblin Electromancer
Instant and sorcery spells you cast cost less to cast.
Swiftfoot Boots
Equipped creature has hexproof and haste. (It can’t be the target of spells or abilities your opponents control. It can attack and no matter when it came under your control.)
Equip (
: Attach to target creature you control. Equip only as a sorcery.)