Frightcrawler 
Creature — Horror
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Threshold — As long as seven or more cards are in your graveyard, this creature gets +2/+2 and can't block.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL