Streets of New Capenna

Even the Score | Instant | | This spell costs {U}{U}{U} less to cast if an opponent has drawn four or more cards this turn. Draw X cards. | Greg Opalinski

All-Seeing Arbiter | Creature | Avatar | Flying Whenever All-Seeing Arbiter enters the battlefield or attacks, draw two cards, then discard a card. Whenever you discard a card, target creature an opponent controls gets -X/-0 until your next turn, where X is the number of different mana values among cards in your graveyard. | Robin Olausson

Raffine, Scheming Seer | Legendary Creature | Sphinx Demon | Flying, ward {1} Whenever you attack, target attacking creature connives X, where X is the number of attacking creatures. (Draw X cards, then discard X cards. Put a +1/+1 counter on that creature for each nonland card discarded this way.) | Johannes Voss

Falco Spara, Pactweaver | Legendary Creature | Bird Demon | Flying, trample Falco Spara, Pactweaver enters the battlefield with a shield counter on it. You may look at the top card of your library any time. You may cast spells from the top of your library by removing a counter from a creature you control in addition to paying their other costs. | Kieran Yanner

Lord Xander, the Collector | Legendary Creature | Vampire Demon Noble | When Lord Xander, the Collector enters the battlefield, target opponent discards half the cards in their hand, rounded down. Whenever Lord Xander attacks, defending player mills half their library, rounded down. When Lord Xander dies, target opponent sacrifices half the nonland permanents they control, rounded down. | Martina Fackova

Meeting of the Five | Sorcery | | Exile the top ten cards of your library. You may cast spells with exactly three colors from among them this turn. Add {W}{W}{U}{U}{B}{B}{R}{R}{G}{G}. Spend this mana only to cast spells with exactly three colors. | Dominik Mayer