Brimstone Trebuchet

Defender, reach
{T}: Brimstone Trebuchet deals 1 damage to each opponent.
Whenever a Knight you control enters, untap Brimstone Trebuchet.

Cinder Wall

Defender
When Cinder Wall blocks, destroy it at end of combat.

Drossforge Bridge

Drossforge Bridge enters tapped.
Indestructible
{T}: Add {B} or {R}.

Swamp

Faithless Looting

Draw two cards, then discard two cards.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Glyph of Destruction

Target blocking Wall you control gets +10/+0 until end of combat. Prevent all damage that would be dealt to it this turn. Destroy it at the beginning of the next end step.

Shield Sphere

Defender
Whenever Shield Sphere blocks, put a -0/-1 counter on it.

Tuktuk Rubblefort

Defender, reach
Creatures you control have haste.

Consulate Skygate

Defender
Reach (This creature can block creatures with flying.)

Soul's Fire

Target creature you control deals damage equal to its power to any target.

Steel Wall

Mountain

Wall of Earth

Tainted Strike

Target creature gets +1/+0 and gains infect until end of turn. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Fling

As an additional cost to cast this spell, sacrifice a creature.
Fling deals damage equal to the sacrificed creature's power to any target.