
Fiendslayer Paladin | Creature | Human Knight | First strike (This creature deals combat damage before creatures without first strike.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)
Fiendslayer Paladin can't be the target of black or red spells your opponents control. | Wesley Burt

Path of Bravery | Enchantment | | As long as your life total is greater than or equal to your starting life total, creatures you control get +1/+1.
Whenever one or more creatures you control attack, you gain life equal to the number of attacking creatures. | Chris Rahn

Dark Prophecy | Enchantment | | Whenever a creature you control dies, you draw a card and you lose 1 life. | Scott Chou

Grim Return | Instant | | Choose target creature card in a graveyard that was put there from the battlefield this turn. Put that card onto the battlefield under your control. | Seb McKinnon

Lifebane Zombie | Creature | Zombie Warrior | Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)
When Lifebane Zombie enters the battlefield, target opponent reveals their hand. You choose a green or white creature card from it and exile that card. | Min Yum

Syphon Sliver | Creature | Sliver | Sliver creatures you control have lifelink. (Damage dealt by a Sliver creature you control also causes you to gain that much life.) | Tyler Jacobson

Xathrid Necromancer | Creature | Human Wizard | Whenever Xathrid Necromancer or another Human creature you control dies, create a tapped 2/2 black Zombie creature token. | Maciej Kuciara

Chandra's Phoenix | Creature | Phoenix | Flying
Haste (This creature can attack and {T} as soon as it comes under your control.)
Whenever an opponent is dealt damage by a red instant or sorcery spell you control or by a red planeswalker you control, return Chandra's Phoenix from your graveyard to your hand. | Aleksi Briclot

Mindsparker | Creature | Elemental | First strike (This creature deals combat damage before creatures without first strike.)
Whenever an opponent casts a white or blue instant or sorcery spell, Mindsparker deals 2 damage to that player. | Wayne Reynolds

Oath of the Ancient Wood | Enchantment | | Whenever Oath of the Ancient Wood or another enchantment enters the battlefield under your control, you may put a +1/+1 counter on target creature. | Dan Scott

Witchstalker | Creature | Wolf | Hexproof (This creature can't be the target of spells or abilities your opponents control.)
Whenever an opponent casts a blue or black spell during your turn, put a +1/+1 counter on Witchstalker. | Christopher Moeller