Innistrad: Crimson Vow

Angelic Quartermaster | Creature | Angel Soldier | Flying When Angelic Quartermaster enters the battlefield, put a +1/+1 counter on each of up to two other target creatures. | PINDURSKI

Diver Skaab | Creature | Zombie | Exploit (When this creature enters the battlefield, you may sacrifice a creature.) When Diver Skaab exploits a creature, target creature's owner puts it on the top or bottom of their library. | Dave Kendall

Wedding Security | Creature | Vampire Soldier | Whenever Wedding Security attacks, you may sacrifice a Blood token. If you do, put a +1/+1 counter on Wedding Security and draw a card. | Francisco Miyara

Frenzied Devils | Creature | Devil | Haste Whenever you cast a noncreature spell, Frenzied Devils gets +2/+2 until end of turn. | Andrey Kuzinskiy

Cloaked Cadet | Creature | Human Ranger | Training (Whenever this creature attacks with another creature with greater power, put a +1/+1 counter on this creature.) Whenever one or more +1/+1 counters are put on one or more Humans you control, draw a card. This ability triggers only once each turn. | Igor Kieryluk

Infestation Expert | Creature | Human Werewolf | Whenever Infestation Expert enters the battlefield or attacks, create a 1/1 green Insect creature token. Daybound (If a player casts no spells during their own turn, it becomes night next turn.) | Vincent Proce