
Desecration Demon | Creature | Demon | Flying
At the beginning of each combat, any opponent may sacrifice a creature. If a player does, tap Desecration Demon and put a +1/+1 counter on it. | Jason Chan

Pack Rat | Creature | Rat | Pack Rat's power and toughness are each equal to the number of Rats you control.
{2}{B}, Discard a card: Create a token that's a copy of Pack Rat. | Kev Walker

Carnival Hellsteed | Creature | Nightmare Horse | First strike, haste
Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.) | Chase Stone

Cryptborn Horror | Creature | Horror | Trample
Cryptborn Horror enters the battlefield with X +1/+1 counters on it, where X is the total life lost by your opponents this turn. | Richard Wright

Corpsejack Menace | Creature | Fungus | If one or more +1/+1 counters would be put on a creature you control, twice that many +1/+1 counters are put on it instead. | Chris Rahn

Lotleth Troll | Creature | Zombie Troll | Trample
Discard a creature card: Put a +1/+1 counter on Lotleth Troll.
{B}: Regenerate Lotleth Troll. | Vincent Proce

Deathrite Shaman | Creature | Elf Shaman | {T}: Exile target land card from a graveyard. Add one mana of any color.
{B}, {T}: Exile target instant or sorcery card from a graveyard. Each opponent loses 2 life.
{G}, {T}: Exile target creature card from a graveyard. You gain 2 life. | Steve Argyle