Throne of Eldraine

Wintermoor Commander | Creature | Human Knight | Deathtouch Wintermoor Commander's toughness is equal to the number of Knights you control. Whenever Wintermoor Commander attacks, another target Knight you control gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.) | Tyler Jacobson

Resolute Rider | Creature | Human Knight | {W/B}{W/B}: Resolute Rider gains lifelink until end of turn. {W/B}{W/B}{W/B}: Resolute Rider gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.) | Carmen Sinek

Lochmere Serpent | Creature | Serpent | Flash {U}, Sacrifice an Island: Lochmere Serpent can't be blocked this turn. {B}, Sacrifice a Swamp: You gain 1 life and draw a card. {U}{B}: Exile five target cards from an opponent's graveyard. Return Lochmere Serpent from your graveyard to your hand. Activate only as a sorcery. | Sam Burley

Stormfist Crusader | Creature | Human Knight | Menace At the beginning of your upkeep, each player draws a card and loses 1 life. | Chris Rallis

Elite Headhunter | Creature | Human Knight | Menace (This creature can't be blocked except by two or more creatures.) {B/R}{B/R}{B/R}, Sacrifice another creature or an artifact: Elite Headhunter deals 2 damage to target creature or planeswalker. | Daarken

Savvy Hunter | Creature | Human Warrior | Whenever Savvy Hunter attacks or blocks, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.") Sacrifice two Foods: Draw a card. | Dan Dos Santos

Deathless Knight | Creature | Skeleton Knight | Haste When you gain life for the first time each turn, return Deathless Knight from your graveyard to your hand. | Igor Kieryluk

Korvold, Fae-Cursed King | Legendary Creature | Dragon Noble | Flying Whenever Korvold, Fae-Cursed King enters the battlefield or attacks, sacrifice another permanent. Whenever you sacrifice a permanent, put a +1/+1 counter on Korvold and draw a card. | Wisnu Tan