Throne of Eldraine

Barge In | Instant | | Target attacking creature gets +2/+2 until end of turn. Each attacking non-Human creature gains trample until end of turn. | Mark Behm

Claim the Firstborn | Sorcery | | Gain control of target creature with mana value 3 or less until end of turn. Untap that creature. It gains haste until end of turn. | Iain McCaig

Fervent Champion | Creature | Human Knight | First strike, haste Whenever Fervent Champion attacks, another target attacking Knight you control gets +1/+0 until end of turn. Equip abilities you activate that target Fervent Champion cost {3} less to activate. | Steve Argyle

Redcap Melee | Instant | | Redcap Melee deals 4 damage to target creature or planeswalker. If a nonred permanent is dealt damage this way, you sacrifice a land. | Chris Rallis

Weaselback Redcap | Creature | Goblin Knight | {1}{R}: Weaselback Redcap gets +2/+0 until end of turn. | Grzegorz Rutkowski