Glaze Fiend

Flying
Whenever another artifact you control enters, this creature gets +2/+2 until end of turn.

Gravedigger

When this creature enters, you may return target creature card from your graveyard to your hand.

Grixis Battlemage

{U}, {T}: Draw a card, then discard a card.
{R}, {T}: Target creature can't block this turn.

Hidden Horror

When this creature enters, sacrifice it unless you discard a creature card.

Megrim

Whenever an opponent discards a card, this enchantment deals 2 damage to that player.

Mind Rot

Mind Shatter

Target player discards X cards at random.

Moonglove Winnower

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Mortivore

Mortivore's power and toughness are each equal to the number of creature cards in all graveyards.
{B}: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Onyx Goblet

Griffin Sentinel

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Plague Beetle

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Ravenous Rats

When this creature enters, target opponent discards a card.

Salvage Slasher

This creature gets +1/+0 for each artifact card in your graveyard.

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.

Severed Legion

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Salvat 2011