The Brothers' War

Forging the Anchor | Sorcery | | Look at the top five cards of your library. You may reveal any number of artifact cards from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in a random order. | Liiga Smilshkalne

Hurkyl, Master Wizard | Legendary Creature | Human Wizard Advisor | At the beginning of your end step, if you've cast a noncreature spell this turn, reveal the top five cards of your library. For each card type among noncreature spells you've cast this turn, you may put a card of that type from among the revealed cards into your hand. Put the rest on the bottom of your library in a random order. | Randy Vargas

Skystrike Officer | Creature | Human Soldier | Flying Whenever Skystrike Officer attacks, create a 1/1 colorless Soldier artifact creature token. Tap three untapped Soldiers you control: Draw a card. | Diego Gisbert

Splitting the Powerstone | Sorcery | | As an additional cost to cast this spell, sacrifice an artifact. Create two tapped Powerstone tokens. If the sacrificed artifact was legendary, draw a card. (The tokens are artifacts with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") | Campbell White

Stern Lesson | Instant | | Draw two cards, then discard a card. Create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") | Lie Setiawan

Third Path Savant | Creature | Human Wizard | {7}: Draw two cards. | Artur Treffner

Urza, Powerstone Prodigy | Legendary Creature | Human Artificer | Vigilance {1}, {T}: Draw a card, then discard a card. Whenever you discard one or more artifact cards, create a tapped Powerstone token. This ability triggers only once each turn. (The token is an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") | Donato Giancola

Urza's Rebuff | Instant | | Choose one — • Counter target spell. • Tap up to two target creatures. | Josu Hernaiz

Wing Commando | Creature | Human Soldier | Flying Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) | David Auden Nash

Urza, Lord Protector | Legendary Creature | Human Artificer | Artifact, instant, and sorcery spells you cast cost {1} less to cast. {7}: If you both own and control Urza, Lord Protector and an artifact named The Mightstone and Weakstone, exile them, then meld them into Urza, Planeswalker. Activate only as a sorcery. | Ryan Pancoast