Bioshift

Move any number of +1/+1 counters from target creature onto another target creature with the same controller.

Boros Reckoner

Whenever this creature is dealt damage, it deals that much damage to any target.
{R/W}: This creature gains first strike until end of turn.

Burning-Tree Emissary

Coerced Confession

Target player mills four cards. You draw a card for each creature card put into their graveyard this way.

Deathcult Rogue

This creature can't be blocked except by Rogues.

Gift of Orzhova

Enchant creature
Enchanted creature gets +1/+1 and has flying and lifelink.

Nav Squad Commandos

Battalion — Whenever this creature and at least two other creatures attack, this creature gets +1/+1 until end of turn. Untap it.

Immortal Servitude

Return each creature card with mana value X from your graveyard to the battlefield.

Merfolk of the Depths

Flash (You may cast this spell any time you could cast an instant.)

Nightveil Specter

Flying
Whenever this creature deals combat damage to a player, that player exiles the top card of their library.
You may play lands and cast spells from among cards exiled with this creature.

Pit Fight

Target creature you control fights another target creature. (Each deals damage equal to its power to the other.)

Rubblebelt Raiders

Whenever this creature attacks, put a +1/+1 counter on it for each attacking creature you control.

Shattering Blow

Armored Transport

Prevent all combat damage that would be dealt to this creature by creatures blocking it.

Boros Keyrune

{T}: Add {R} or {W}.
{R}{W}: This artifact becomes a 1/1 red and white Soldier artifact creature with double strike until end of turn. (It deals both first-strike and regular combat damage.)

Dimir Keyrune

{T}: Add {U} or {B}.
{U}{B}: This artifact becomes a 2/2 blue and black Horror artifact creature until end of turn and can't be blocked this turn.

Gatecrash