Ember-Eye Wolf

Haste
{1}{R}: Ember-Eye Wolf gets +2/+0 until end of turn.

Arc Runner

Haste (This creature can attack and {T} as soon as it comes under your control.)
At the beginning of the end step, sacrifice Arc Runner.

Goblin Fire Fiend

Haste
Goblin Fire Fiend must be blocked if able.
{R}: Goblin Fire Fiend gets +1/+0 until end of turn.

Goblin Striker

Zilortha, Strength Incarnate

Trample
Lethal damage dealt to creatures you control is determined by their power rather than their toughness.

Eron the Relentless

Haste
{R}{R}{R}: Regenerate Eron the Relentless.

Deathleaper, Terror Weapon

Flash
Haste
Flesh Hooks — Creatures you control that entered the battlefield this turn have double strike.

Battle Rampart

Defender
{T}: Target creature gains haste until end of turn.

Akoum Firebird

Flying, haste
Akoum Firebird attacks each combat if able.
Landfall — Whenever a land enters the battlefield under your control, you may pay {4}{R}{R}. If you do, return Akoum Firebird from your graveyard to the battlefield.

Avarax

Haste
When Avarax enters the battlefield, you may search your library for a card named Avarax, reveal it, put it into your hand, then shuffle.
{1}{R}: Avarax gets +1/+0 until end of turn.