Albino Grey Seer

Other Skaven and Rats you control have menace.
{1}{b},{t}: Create a 1/1 black Rat creature token
{2}{b}{b},{t}: Sacrifice three Rats: Gain control of
target creature.
"White-fur? Seers are not to be trusted.
Everywhere they scurry, hoarding their secrets,
spreading their lies. Who knows what they
whisper in distant ears."
-Queek Headtaker, Warlord of Clan Mors