Ancora...
Increasing Savagery {2}{G}{G}
Sorcery Rare
Put five +1/+1 counters on target creature. If Increasing Savagery was cast from a graveyard, put ten +1/+1 counters on that creature instead.
Flashback

{G}{G}
Falkenrath Torturer {2}{B}
Creature - Vampire Common
Sacrifice a creature: Falkenrath Torturer gains flying until end of turn. If the sacrificed creature was a Human, put a +1/+1 counter on Falkenrath Torturer.
2/1
Skirsdag Flayer {1}{B}
Creature - Human Cleric Uncommon

{B},

, Sacrifice a Human: Destroy target creature.
Certain initiates into the Skirsdag cult take a vow of blindness, pledging obedience to none but demonkind.
1/1
Talons of Falkenrath {1}{R}
Enchantment - Aura Common
Flash
Enchant creature
Enchanted creature has "{1}{R}: This creature gets +2/+0 until end of turn."
Executioner's Hood {2}
Artifact - Equipment Common
Equipped creature has intimidate.
Equip
Gravetiller Wurm {5}{G}
Creature - Wurm Uncommon
Trample
Morbid - Gravetiller Wurm enters the battlefield with four +1/+1 counters on it if a creature died this turn.
4/4
Heckling Fiends {2}{R}
Creature - Devil Uncommon

{R}: Target creature attacks this turn if able.
2/2
Heavy Mattock {3}
Artifact - Equipment Common
Equipped creature gets +1/+1.
As long as equipped creature is a Human, it gets an additional +1/+1.
Equip
Headless Skaab {2}{U}
Creature - Zombie Common
As an additional cost to cast Headless Skaab, exile a creature card from your graveyard.
Headless Skaab enters the battlefield tapped.
A head is a needless encumbrance when muscle is all that's required.
3/6
Tragic Slip {B}
Instant Common
Target creature gets -1/-1 until end of turn.
Morbid - that creature gets -13/-13 instead if a creature died this turn.
Havengul Runebinder {2}{U}{U}
Creature - Human Wizard Rare

{U},

, Exile a creature card from your graveyard: Put a 2/2 black Zombie creature token onto the battlefield, then put a +1/+1 counter on each Zombie creature you control.
2/2
Forge Devil {R}
Creature - Devil Common
When Forge Devil enters the battlefield, it deals 1 damage to target creature and 1 damage to you.
1/1