Dominaria United

Argivian Cavalier | Creature | Orc Knight | Enlist (As this creature attacks, you may tap a nonattacking creature you control without summoning sickness. When you do, add its power to this creature's until end of turn.) When Argivian Cavalier enters the battlefield, create a 1/1 white Soldier creature token. | Chris Seaman

Charismatic Vanguard | Creature | Dwarf Soldier | {4}{W}: Creatures you control get +1/+1 until end of turn. | David Palumbo

Citizen's Arrest | Enchantment | | When Citizen's Arrest enters the battlefield, exile target creature or planeswalker an opponent controls until Citizen's Arrest leaves the battlefield. | Wisnu Tan

Mesa Cavalier | Creature | Human Knight | Flying When Mesa Cavalier enters the battlefield, you gain 2 life. | David Palumbo

Stall for Time | Instant | | Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.) Tap up to two target creatures. If this spell was kicked, put a stun counter on each of those creatures. (If a permanent with a stun counter on it would become untapped, remove one from it instead.) Draw a card. | Ryan Alexander Lee

Tolarian Geyser | Sorcery | | Kicker {W} (You may pay an additional {W} as you cast this spell.) Return target creature to its owner's hand. Draw a card. If this spell was kicked, you gain 3 life. | Olivier Bernard

Keldon Strike Team | Creature | Human Warrior | Kicker {1}{W} (You may pay an additional {1}{W}} as you cast this spell.) When Keldon Strike Team enters the battlefield, if it was kicked, create two 1/1 white Soldier creature tokens. As long as Keldon Strike Team entered the battlefield this turn, creatures you control have haste. | Josu Hernaiz

Scout the Wilderness | Sorcery | | Kicker {1}{W} (You may pay an additional {1}{W} as you cast this spell.) Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. If this spell was kicked, create two 1/1 white Soldier creature tokens. | A. M. Sartor