The Brothers' War

Urza's Command | Instant | | Choose two — • Creatures you don't control get -2/-0 until end of turn. • Create a tapped Powerstone token. • Create a tapped 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control." • Scry 1, then draw a card. | Dominik Mayer

Hostile Negotiations | Instant | | Exile the top three cards of your library in a face-down pile, then exile the next top three cards of your library in another face-down pile. Look at the cards in each pile, then turn a pile of your choice face up. An opponent chooses one of those piles. Put all cards in the chosen pile into your hand and the rest into your graveyard. You lose 3 life. | David Auden Nash

Mishra's Onslaught | Instant | | Choose one — • Create two 1/1 colorless Soldier artifact creature tokens. • Creatures you control get +2/+0 until end of turn. | Josu Hernaiz

Pyrrhic Blast | Instant | | As an additional cost to cast this spell, sacrifice a creature. Pyrrhic Blast deals damage equal to the sacrificed creature's power to any target. Draw a card. | Raf Kayupov

Tawnos's Tinkering | Instant | | Put two +1/+1 counters on target artifact, creature, or land you control. Untap that permanent. If it isn't a creature, it becomes a 0/0 creature in addition to its other types. | Alex Stone