Core Set 2021

Watcher of the Spheres | Creature | Bird Wizard | Flying Creature spells with flying you cast cost {1} less to cast. Whenever another creature with flying enters the battlefield under your control, Watcher of the Spheres gets +1/+1 until end of turn. | G-host Lee

Indulging Patrician | Creature | Vampire Noble | Flying Lifelink (Damage dealt by this creature also causes you to gain that much life.) At the beginning of your end step, if you gained 3 or more life this turn, each opponent loses 3 life. | Miranda Meeks

Alpine Houndmaster | Creature | Human Warrior | When Alpine Houndmaster enters the battlefield, you may search your library for a card named Alpine Watchdog and/or a card named Igneous Cur, reveal them, put them into your hand, then shuffle. Whenever Alpine Houndmaster attacks, it gets +X/+0 until end of turn, where X is the number of other attacking creatures. | Mark Behm

Conclave Mentor | Creature | Centaur Cleric | If one or more +1/+1 counters would be put on a creature you control, that many plus one +1/+1 counters are put on that creature instead. When Conclave Mentor dies, you gain life equal to its power. | Raoul Vitale

Obsessive Stitcher | Creature | Human Wizard | {T}: Draw a card, then discard a card. {2}{U}{B}, {T}, Sacrifice Obsessive Stitcher: Return target creature card from your graveyard to the battlefield. | Joe Slucher

Experimental Overload | Sorcery | | Create an X/X blue and red Weird creature token, where X is the number of instant and sorcery cards in your graveyard. Then you may return an instant or sorcery card from your graveyard to your hand. Exile Experimental Overload. | Lie Setiawan

Lorescale Coatl | Creature | Snake | Whenever you draw a card, put a +1/+1 counter on Lorescale Coatl. | Greg Staples

Dire Fleet Warmonger | Creature | Orc Pirate | At the beginning of combat on your turn, you may sacrifice another creature. If you do, Dire Fleet Warmonger gets +2/+2 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.) | Mathias Kollros

Twinblade Assassins | Creature | Elf Assassin | At the beginning of your end step, if a creature died this turn, draw a card. | Campbell White

Leafkin Avenger | Creature | Elemental Druid | {T}: Add {G} for each creature with power 4 or greater you control. {7}{R}: Leafkin Avenger deals damage equal to its power to target player or planeswalker. | Filip Burburan