Overgrown Nightmare

Target Black Creature you control gets +5/+5 and gains Intimidate until end of turn.
We saw it rise from the ground, as a shadow at first,
but then materializing as our greatest fear. It looked different to everyone else, and no one knew its true
form. Even the general quivered in his boots. I saw a
giant spider, Frank saw a Demon, but the general...
he saw the indescribable planar death. An Eldrazi.