War of the Spark

Dovin's Veto | Instant | | This spell can't be countered. Counter target noncreature spell. | Izzy

Elite Guardmage | Creature | Human Wizard | Flying When Elite Guardmage enters the battlefield, you gain 3 life and draw a card. | PINDURSKI

Teferi, Time Raveler | Legendary Planeswalker | Teferi | Each opponent can cast spells only any time they could cast a sorcery. +1: Until your next turn, you may cast sorcery spells as though they had flash. −3: Return up to one target artifact, creature, or enchantment to its owner's hand. Draw a card. | Chris Rallis

Time Wipe | Sorcery | | Return a creature you control to its owner's hand, then destroy all creatures. | Svetlin Velinov

Dovin, Hand of Control | Legendary Planeswalker | Dovin | Artifact, instant, and sorcery spells your opponents cast cost {1} more to cast. −1: Until your next turn, prevent all damage that would be dealt to and dealt by target permanent an opponent controls. | Kieran Yanner

Niv-Mizzet Reborn | Legendary Creature | Dragon Avatar | Flying When Niv-Mizzet Reborn enters the battlefield, reveal the top ten cards of your library. For each color pair, choose a card that's exactly those colors from among them. Put the chosen cards into your hand and the rest on the bottom of your library in a random order. | Raymond Swanland