Guilds of Ravnica

Centaur Peacemaker | Creature | Centaur Cleric | When Centaur Peacemaker enters the battlefield, each player gains 4 life. | Raoul Vitale

Knight of Autumn | Creature | Dryad Knight | When Knight of Autumn enters the battlefield, choose one — • Put two +1/+1 counters on Knight of Autumn. • Destroy target artifact or enchantment. • You gain 4 life. | Ryan Pancoast

Ledev Champion | Creature | Elf Knight | Whenever Ledev Champion attacks, you may tap any number of untapped creatures you control. Ledev Champion gets +1/+1 until end of turn for each creature tapped this way. {3}{G}{W}: Create a 1/1 white Soldier creature token with lifelink. | Daarken

March of the Multitudes | Instant | | Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Create X 1/1 white Soldier creature tokens with lifelink. | Zack Stella

Charnel Troll | Creature | Troll | Trample At the beginning of your upkeep, exile a creature card from your graveyard. If you do, put a +1/+1 counter on Charnel Troll. Otherwise, sacrifice it. {B}{G}, Discard a creature card: Put a +1/+1 counter on Charnel Troll. | Daniel Ljunggren

Erstwhile Trooper | Creature | Zombie Soldier | Discard a creature card: Erstwhile Trooper gets +2/+2 and gains trample until end of turn. Activate only once each turn. | Jason A. Engle

Ochran Assassin | Creature | Elf Assassin | Deathtouch All creatures able to block Ochran Assassin do so. | Anna Steinbauer

Pitiless Gorgon | Creature | Gorgon | Deathtouch | Alex Konstad