
Guardian of the Gateless | Creature | Angel | Flying
Guardian of the Gateless can block any number of creatures.
Whenever Guardian of the Gateless blocks, it gets +1/+1 until end of turn for each creature it's blocking. | Wesley Burt

Nav Squad Commandos | Creature | Human Soldier | Battalion — Whenever Nav Squad Commandos and at least two other creatures attack, Nav Squad Commandos gets +1/+1 until end of turn. Untap it. | Steve Prescott

Towering Thunderfist | Creature | Giant Soldier | {W}: Towering Thunderfist gains vigilance until end of turn. | Zoltan Boros

Obzedat, Ghost Council | Legendary Creature | Spirit Advisor | When Obzedat, Ghost Council enters the battlefield, target opponent loses 2 life and you gain 2 life.
At the beginning of your end step, you may exile Obzedat. If you do, return it to the battlefield under its owner's control at the beginning of your next upkeep. It gains haste. | Svetlin Velinov

Vizkopa Confessor | Creature | Human Cleric | Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)
When Vizkopa Confessor enters the battlefield, pay any amount of life. Target opponent reveals that many cards from their hand. You choose one of them and exile it. | Ryan Pancoast

Fortress Cyclops | Creature | Cyclops Soldier | Whenever Fortress Cyclops attacks, it gets +3/+0 until end of turn.
Whenever Fortress Cyclops blocks, it gets +0/+3 until end of turn. | Maciej Kuciara