Secret Lair Drop

Instant

Lightning Strike deals 3 damage to any target.

Lightning Strike

Creature — Human Soldier

Other Soldier creatures get +1/+1 and have first strike. (They deal combat damage before creatures without first strike.)

Field Marshal

Sorcery

Temporal Manipulation

Dark Ritual

Creature — Zombie Knight

Whenever a nontoken creature you control dies, this creature deals 1 damage to you and you draw a card.

Midnight Reaper

Untap target creature. After this main phase, there is an additional combat phase followed by an additional main phase.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Seize the Day

Treasure

Deadly Dispute

As an additional cost to cast this spell, sacrifice an artifact or creature.
Draw two cards and create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Instant — Adventure

Destroy target creature or planeswalker. You lose 2 life. (Then exile this card. You may cast the creature later from exile.)

Swift End

On an Adventure

Lifelink
When this creature dies, put it on the bottom of its owner's library.

Murderous Rider

Creature — Human Rogue Ally

Whenever this creature or another creature you control dies, each opponent loses 1 life and you gain 1 life.

Zulaport Cutthroat

Enchantment

{3}{R}{R}: Untap all creatures you control. After this main phase, there is an additional combat phase followed by an additional main phase. Activate only as a sorcery.

Aggravated Assault

Instant — Arcane

Add {R}{R}{R}.
Splice onto Arcane {1}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)