Purakos, From the Pit

Deathtouch, menace.
Whenever a creature you control escapes, if it's
black or red it gains your choice of deathtouch
or menace and is a demon in addition to its other
types for as long as Purakos, From the Pit is on
the battlefield.
Escape—{1}{b}{r} Exile 4 other cards from your
graveyard. (You can cast this spell from your
graveyard for its escape cost.)