Elghastus, The Plagueknight

Menace
Elghastus's toughness is equal to X.
Once at any time during your turn you may
create a Plague token (Its an artifact with {3}:
Attach this artifact to target creature an opponent
controls. That creature has base power and toughness
3/2 and has deathtouch and is goaded. When the
creature this card is attached to attacks, exile it after
combat.)