Fear

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)

30th Anniversary Edition

"Even the bravest of warriors yet knows the dark clutch of fright upon his stalwart heart."
—Lim-Dûl the Necromancer

Tenth Edition

Enchant creature
Enchanted creature has fear.

"Don't fear the darkness. Fear what it hides."
—Remin, venerable monk

Ninth Edition

Enchant creature (Target a creature as you play this. This card comes into play attached to that creature.)
Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)