
Ajani's Pridemate | Creature | Cat Soldier | Whenever you gain life, put a +1/+1 counter on Ajani's Pridemate. | Svetlin Velinov

Dauntless River Marshal | Creature | Human Soldier | Dauntless River Marshal gets +1/+1 as long as you control an Island.
{3}{U}: Tap target creature. | Mark Winters

Wall of Essence | Creature | Wall | Defender (This creature can't attack.)
Whenever Wall of Essence is dealt combat damage, you gain that much life. | Adam Rex

Diffusion Sliver | Creature | Sliver | Whenever a Sliver creature you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays {2}. | Trevor Claxton

Ensoul Artifact | Enchantment | Aura | Enchant artifact
Enchanted artifact is a creature with base power and toughness 5/5 in addition to its other types. | Jasper Sandner

Military Intelligence | Enchantment | | Whenever you attack with two or more creatures, draw a card. | Craig J Spearing

Quickling | Creature | Faerie Rogue | Flash (You may cast this spell any time you could cast an instant.)
Flying
When Quickling enters the battlefield, sacrifice it unless you return another creature you control to its owner's hand. | Clint Cearley

Turn to Frog | Instant | | Until end of turn, target creature loses all abilities and becomes a blue Frog with base power and toughness 1/1. | Warren Mahy

Leeching Sliver | Creature | Sliver | Whenever a Sliver you control attacks, defending player loses 1 life. | Svetlin Velinov

Altac Bloodseeker | Creature | Human Berserker | Whenever a creature an opponent controls dies, Altac Bloodseeker gets +2/+0 and gains first strike and haste until end of turn. (It deals combat damage before creatures without first strike, and it can attack and {T} as soon as it comes under your control.) | Cynthia Sheppard

Circle of Flame | Enchantment | | Whenever a creature without flying attacks you or a planeswalker you control, Circle of Flame deals 1 damage to that creature. | Jaime Jones

Shrapnel Blast | Instant | | As an additional cost to cast this spell, sacrifice an artifact.
Shrapnel Blast deals 5 damage to any target. | Hideaki Takamura

Back to Nature | Instant | | Destroy all enchantments. | Howard Lyon

Venom Sliver | Creature | Sliver | Sliver creatures you control have deathtouch. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.) | Dave Kendall

Wall of Mulch | Creature | Wall | Defender (This creature can't attack.)
{G}, Sacrifice a Wall: Draw a card. | Anthony S. Waters

Rogue's Gloves | Artifact | Equipment | Whenever equipped creature deals combat damage to a player, you may draw a card.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.) | Cyril Van Der Haegen

Sacred Armory | Artifact | | {2}: Target creature gets +1/+0 until end of turn. | Yeong-Hao Han