Guarded Heir | Creature | Human Noble | Lifelink (Damage dealt by this creature also causes you to gain that much life.)
When this creature enters, create two 3/3 white Knight creature tokens. | Craig J Spearing
Curator of Destinies | Creature | Sphinx | This spell can't be countered.
Flying
When this creature enters, look at the top five cards of your library and separate them into a face-down pile and a face-up pile. An opponent chooses one of those piles. Put that pile into your hand and the other into your graveyard. | Ralph Horsley
Grappling Kraken | Creature | Kraken | Landfall — Whenever a land you control enters, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.) | Ben Wootten
Extravagant Replication | Enchantment | | At the beginning of your upkeep, create a token that's a copy of another target nonland permanent you control. | Pauline Voss
Self-Reflection | Sorcery | | Create a token that's a copy of target creature you control.
Flashback {3}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.) | Henry Peters
Time Stop | Instant | | End the turn. (Exile all spells and abilities from the stack, including this card. The player whose turn it is discards down to their maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.) | Scott M. Fischer
Arbiter of Woe | Creature | Demon | As an additional cost to cast this spell, sacrifice a creature.
Flying
When this creature enters, each opponent discards a card and loses 2 life. You draw a card and gain 2 life. | Jim Pavelec
Liliana, Dreadhorde General | Legendary Planeswalker | Liliana | Whenever a creature you control dies, draw a card.
+1: Create a 2/2 black Zombie creature token.
−4: Each player sacrifices two creatures.
−9: Each opponent chooses a permanent they control of each permanent type and sacrifices the rest. | Chris Rallis
Rite of the Dragoncaller | Enchantment | | Whenever you cast an instant or sorcery spell, create a 5/5 red Dragon creature token with flying. | PINDURSKI
Etali, Primal Storm | Legendary Creature | Elder Dinosaur | Whenever Etali, Primal Storm attacks, exile the top card of each player's library, then you may cast any number of spells from among those cards without paying their mana costs. | Raymond Swanland
Shivan Dragon | Creature | Dragon | Flying (This creature can't be blocked except by creatures with flying or reach.)
{R}: Shivan Dragon gets +1/+0 until end of turn. | Donato Giancola
Apothecary Stomper | Creature | Elephant | Vigilance (Attacking doesn't cause this creature to tap.)
When this creature enters, choose one —
• Put two +1/+1 counters on target creature you control.
• You gain 4 life. | Edgar Sánchez Hidalgo
Quakestrider Ceratops | Creature | Dinosaur | | Josiah "Jo" Cameron
Quilled Greatwurm | Creature | Wurm | Trample
Whenever a creature you control deals combat damage during your turn, put that many +1/+1 counters on it. (It must survive to get the counters.)
You may cast this card from your graveyard by removing six counters from among creatures you control in addition to paying its other costs. | Michal Ivan
Affectionate Indrik | Creature | Beast | When Affectionate Indrik enters, you may have it fight target creature you don't control. (Each deals damage equal to its power to the other.) | Steve Prescott
Niv-Mizzet, Visionary | Legendary Creature | Dragon Wizard | Flying
You have no maximum hand size.
Whenever a source you control deals noncombat damage to an opponent, you draw that many cards. | Dan Murayama Scott
Thousand-Year Storm | Enchantment | | Whenever you cast an instant or sorcery spell, copy it for each other instant and sorcery spell you've cast before it this turn. You may choose new targets for the copies. | Dimitar Marinski
Muldrotha, the Gravetide | Legendary Creature | Elemental Avatar | During each of your turns, you may play a land and cast a permanent spell of each permanent type from your graveyard. (If a card has multiple permanent types, choose one as you play it.) | Jason Rainville