Mask of Avacyn

Equipped creature gets +1/+2 and has hexproof. (It can't be the target of spells or abilities your opponents control.)
Equip {3}

Tectonic Rift

Destroy target land. Creatures without flying can't block this turn.

Falkenrath Marauders

Flying
Haste (This creature can attack and {T} as soon as it comes under your control.)
Whenever this creature deals combat damage to a player, put two +1/+1 counters on it.

Blood Seeker

Whenever a creature an opponent controls enters, you may have that player lose 1 life.

Night Terrors

Target player reveals their hand. You choose a nonland card from it. Exile that card.

Markov Patrician

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Falkenrath Noble

Flying
Whenever this creature or another creature dies, target player loses 1 life and you gain 1 life.

Night Revelers

This creature has haste as long as an opponent controls a Human.

Rakish Heir

Whenever a Vampire you control deals combat damage to a player, put a +1/+1 counter on it.

Crossway Vampire

When this creature enters, target creature can't block this turn.

Cobbled Wings

Equipped creature has flying.
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Gruesome Deformity

Enchant creature
Enchanted creature has intimidate. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Stromkirk Patrol

Whenever this creature deals combat damage to a player, put a +1/+1 counter on it.

Child of Night

Traitorous Blood

Gain control of target creature until end of turn. Untap it. It gains trample and haste until end of turn.

Traveler's Amulet

{1}, Sacrifice this artifact: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Swamp

Diabolic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Vampiric Fury

Vampire creatures you control get +2/+0 and gain first strike until end of turn. (They deal combat damage before creatures without first strike.)

Bloodcrazed Neonate

This creature attacks each combat if able.
Whenever this creature deals combat damage to a player, put a +1/+1 counter on it.

Sengir Vampire

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by this creature this turn dies, put a +1/+1 counter on this creature.

Curse of Stalked Prey

Enchant player
Whenever a creature deals combat damage to enchanted player, put a +1/+1 counter on that creature.

Tribute to Hunger

Target opponent sacrifices a creature of their choice. You gain life equal to that creature's toughness.