Shriekmaw

Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)
When Shriekmaw enters the battlefield, destroy target nonartifact, nonblack creature.
Evoke (You may cast this spell for its evoke cost. If you do, it’s sacrificed when it enters the battlefield.)

Enchanter’s Bane

At the beginning of your end step, target enchantment deals damage equal to its converted mana cost to its controller unless that player sacrifices it.

Guttersnipe

Whenever you cast an instant or sorcery spell, Guttersnipe deals 2 damage to each opponent.

Affectionate Indrik

When Affectionate Indrik enters the battlefield, you may have it fight target creature you don’t control. (Each deals damage equal to its power to the other.)

Enchanter’s Bane

At the beginning of your end step, target enchantment deals damage equal to its converted mana cost to its controller unless that player sacrifices it.

Thopter Engineer

When Thopter Engineer enters the battlefield, create a 1/1 colorless Thopter artifact creature token with flying.
Artifact creatures you control have haste. (They can attack and as soon as they come under your control.)

Lightform

When Lightform enters the battlefield, it becomes an Aura with enchant creature. Manifest the top card of your library and attach Lightform to it. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it’s a creature card.)
Enchanted creature has flying and lifelink.

Silent-Blade Oni

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Silent-Blade Oni deals combat damage to a player, look at that player’s hand. You may cast a spell from among those cards without paying its mana cost.

Rampaging Baloths

Trample
Landfall — Whenever a land enters the battlefield under your control, you may create a 4/4 green Beast creature token.

Elite Scaleguard

When Elite Scaleguard enters the battlefield, bolster 2. (Choose a creature with the least toughness among creatures you control and put two +1/+1 counters on it.)
Whenever a creature you control with a +1/+1 counter on it attacks, tap target creature defending player controls.

Battle Rampart

Defender
: Target creature gains haste until end of turn.

Aim High

Untap target creature. It gets +2/+2 and gains reach until end of turn. (It can block creatures with flying.)

Riddlekeeper

Whenever a creature attacks you or a planeswalker you control, that creature’s controller mills two cards.

Feral Hydra

Feral Hydra enters the battlefield with X +1/+1 counters on it.
: Put a +1/+1 counter on Feral Hydra. Any player may activate this ability.

Arcane Flight

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

Elvish Vanguard

Whenever another Elf enters the battlefield, put a +1/+1 counter on Elvish Vanguard.

Ember Weaver

Reach (This creature can block creatures with flying.)
As long as you control a red permanent, Ember Weaver gets +1/+0 and has first strike.

Jalira, Master Polymorphist

, , Sacrifice another creature: Reveal cards from the top of your library until you reveal a nonlegendary creature card. Put that card onto the battlefield and the rest on the bottom of your library in a random order.