War Flare

Creatures you control get +2/+1 until end of turn. Untap those creatures.

Shock

Viashino Firstblade

Haste
When this creature enters, it gets +2/+2 until end of turn.

Panic Spellbomb

{T}, Sacrifice this artifact: Target creature can't block this turn.
When this artifact is put into a graveyard from the battlefield, you may pay {R}. If you do, draw a card.

Foundry Helix

As an additional cost to cast this spell, sacrifice a permanent.
Foundry Helix deals 4 damage to any target. If the sacrificed permanent was an artifact, you gain 4 life.

Thrilling Discovery

You gain 2 life. Then you may discard two cards. If you do, draw three cards.

Shattering Blow

Ruinous Minotaur

Whenever this creature deals damage to an opponent, sacrifice a land.

Looming Spires

This land enters tapped.
When this land enters, target creature gets +1/+1 and gains first strike until end of turn.
{T}: Add {R}.

Skyknight Legionnaire

Tenth District Legionnaire

Haste
Whenever you cast a spell that targets this creature, put a +1/+1 counter on this creature, then scry 1.

Mountain

Abraded Bluffs

This land enters tapped.
When this land enters, it deals 1 damage to target opponent.
{T}: Add {R} or {W}.

Martial Glory

Target creature gets +3/+0 until end of turn.
Target creature gets +0/+3 until end of turn.

Boros Guildgate

This land enters tapped.
{T}: Add {R} or {W}.

Plains

Rally the Righteous

Radiance — Untap target creature and each other creature that shares a color with it. Those creatures get +2/+0 until end of turn.

Double Cleave

Target creature gains double strike until end of turn. (It deals both first-strike and regular combat damage.)

Fire at Will

Fire at Will deals 3 damage divided as you choose among one, two, or three target attacking or blocking creatures.