Creature — Vampire Rogue 1/1, B (1)
Common
As long as an opponent has 10 or less life, Guul Draz Vampire gets +2/+1 and has intimidate. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)
"A creature's bloodscent is a beacon that cannot be disguised."
Illus. Steve Argyle

10/1/2009: Intimidate looks at the current colors of a creature that has it. Normally, if Guul Draz Vampire has intimidate, it can't be blocked except by artifact creatures and/or black creatures. If it's turned white, then it can't be blocked except by artifact creatures and/or white creatures.
10/1/2009: If an attacking creature has intimidate, what colors it is matters only as the defending player declares blockers. Once it's blocked, changing its colors won't change that.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Extended (Type 1.X)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern