Champion of Wits | Creature | Naga Wizard | When Champion of Wits enters the battlefield, you may draw cards equal to its power. If you do, discard two cards.
Eternalize {5}{U}{U} ({5}{U}{U}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Naga Wizard with no mana cost. Eternalize only as a sorcery.) | Even Amundsen
Fraying Sanity | Enchantment | Aura Curse | Enchant player
At the beginning of each end step, enchanted player mills X cards, where X is the number of cards put into their graveyard from anywhere this turn. | Ryan Alexander Lee
Hour of Eternity | Sorcery | | Exile X target creature cards from your graveyard. For each card exiled this way, create a token that's a copy of that card, except it's a 4/4 black Zombie. | Tyler Jacobson
Kefnet's Last Word | Sorcery | | Gain control of target artifact, creature, or enchantment. Lands you control don't untap during your next untap step. | Clint Cearley
Nimble Obstructionist | Creature | Bird Wizard | Flash
Flying
Cycling {2}{U} ({2}{U}, Discard this card: Draw a card.)
When you cycle Nimble Obstructionist, counter target activated or triggered ability you don't control. | Shreya Shetty
Swarm Intelligence | Enchantment | | Whenever you cast an instant or sorcery spell, you may copy that spell. You may choose new targets for the copy. | Daniel Ljunggren
Refuse | Instant | | Refuse deals damage to target spell's controller equal to that spell's mana value. | Yongjae Choi
Reason // Believe | Sorcery // Sorcery | | Scry 3. // Aftermath (Cast this spell only from your graveyard. Then exile it.)
Look at the top card of your library. You may put it onto the battlefield if it's a creature card. If you don't, put it into your hand. | Daarken