Marble Titan

Creatures with power 3 or greater don't untap during their controllers' untap steps.

Temporal Adept

{U}{U}{U}, {T}: Return target permanent to its owner's hand.

Scavenger Folk

{G}, {T}, Sacrifice Scavenger Folk: Destroy target artifact.

Unyaro Griffin

Flying
Sacrifice Unyaro Griffin: Counter target red instant or sorcery spell.

Mawcor

Flying
{T}: Mawcor deals 1 damage to any target.

Vesuvan Doppelganger

You may have Vesuvan Doppelganger enter as a copy of any creature on the battlefield, except it doesn't copy that creature's color and it has "At the beginning of your upkeep, you may have this creature become a copy of target creature, except it doesn't copy that creature's color and it has this ability."

Master Decoy

Seasinger

When you control no Islands, sacrifice Seasinger.
You may choose not to untap Seasinger during your untap step.
{T}: Gain control of target creature whose controller controls an Island for as long as you control Seasinger and Seasinger remains tapped.

Songstitcher

{1}{W}: Prevent all combat damage that would be dealt this turn by target attacking creature with flying.

Prodigal Sorcerer

{T}: Prodigal Sorcerer deals 1 damage to any target.

Order of the Sacred Torch

{T}, Pay 1 life: Counter target black spell.

Northern Paladin

{W}{W}, {T}: Destroy target black permanent.

Resistance Fighter

Sacrifice Resistance Fighter: Prevent all combat damage target creature would deal this turn.

Witch Hunter

{T}: Witch Hunter deals 1 damage to target player or planeswalker.
{1}{W}{W}, {T}: Return target creature an opponent controls to its owner's hand.

Southern Paladin

{W}{W}, {T}: Destroy target red permanent.

Spike Weaver

Spike Weaver enters with three +1/+1 counters on it.
{2}, Remove a +1/+1 counter from Spike Weaver: Put a +1/+1 counter on target creature.
{1}, Remove a +1/+1 counter from Spike Weaver: Prevent all combat damage that would be dealt this turn.

Magus of the Unseen

{1}{U}, {T}: Untap target artifact an opponent controls and gain control of it until end of turn. It gains haste until end of turn. When you lose control of the artifact, tap it.